CA1067167A - Ground connector for a jacketed armored electric cable - Google Patents
Ground connector for a jacketed armored electric cableInfo
- Publication number
- CA1067167A CA1067167A CA273,967A CA273967A CA1067167A CA 1067167 A CA1067167 A CA 1067167A CA 273967 A CA273967 A CA 273967A CA 1067167 A CA1067167 A CA 1067167A
- Authority
- CA
- Canada
- Prior art keywords
- cable
- grounding ring
- body portion
- connector
- connector according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
Abstract
GROUND CONNECTOR
ABSTRACT OF THE DISCLOSURE
A ground connector for a jacketed, interlocked armored cable includes a body portion, a resilient grommet, a frictional washer and a compression nut. A longitudinally split metallic grounding ring is also provided. A first end of the grounding ring is seated in a bore formed interiorly of the body portion. The opposite second end of the grounding ring is provided with a plurality of fingers as well as generally U-shaped connecting sections for joining the finger to the second end of the cylindrical wall of the grounding ring. The connecting sections and the fingers are both deflectable upon assembly of the connector.
The fingers, which are initially at an angle with respect to the longitudinal axis of the connector, point in the same direction as the direction of cable assembly. The free ends of the fingers act like barbs to thereby minimize retraction of the cable.
ABSTRACT OF THE DISCLOSURE
A ground connector for a jacketed, interlocked armored cable includes a body portion, a resilient grommet, a frictional washer and a compression nut. A longitudinally split metallic grounding ring is also provided. A first end of the grounding ring is seated in a bore formed interiorly of the body portion. The opposite second end of the grounding ring is provided with a plurality of fingers as well as generally U-shaped connecting sections for joining the finger to the second end of the cylindrical wall of the grounding ring. The connecting sections and the fingers are both deflectable upon assembly of the connector.
The fingers, which are initially at an angle with respect to the longitudinal axis of the connector, point in the same direction as the direction of cable assembly. The free ends of the fingers act like barbs to thereby minimize retraction of the cable.
Description
lQ6'7~67 BACKGROUND OF TH~ INVENTION
, Thls inventlon relates generally to connectors or the llke and more partlcularly to an improved grounding ¢onnector for achieving a watertight connection between a Jacketed, lnterlocked armored cable and a ~unction box or the like.
One example of the prior art in the general fleld `
to which the present invention i8 directed, is disclosed in U.S. Patent No. 3,567,843 granted to K. M. Collins, et al. -on March 2, 1971. The Collins et al structure provides i, a body member having a first threaded portion that is ; adapted to be conne¢ted to a ~unctlon box, an internal conical bore and a second threaded portlon that i8 arranged to receive a compresslon nut. A resilient gro~met havlng a cyllndrlcal bore that is approximately equal to the outside diameter of the cable and a conlcal outer surface that is -; complementary to the conlcal bore ln the body member 18 inserted ln the body member. A plurallty of grounding stlrrups are crlmped to the grommet 80 that a portlon ; 20 thereof~ls in contact with the body member and simultaneously in contact with the metallic armor of the cable. While the Colllns et al patent does dlsclose effectlve structure, 18 also exhlblts several serlous drawbacks. First of all there is the necessity of performing additional operations in order to crimp the ' ''.
.'.` ~
.
, r ~()6~167 stlrrups to the grommet. Furthermore, the stirrups are internal and not visually accessible, should they be lnadvertently omltted such error wlll not be perceived readily and will thererore be an absence Or electrical grounding. Furthermore, the Collins et al patent relies on the compression rorce Or the nut and, while thls is usually efrectlve, it is unpredictable. Ir the nut is not suf~lciently tightened, the Collins et al structure wlll not provlde erflcient groundlng.
Still another example Or the prior art ls dlsclosed ln U.S. Patent No. 2,816,949, granted on December 17, 1957 to L. M. Curtl~s. The Curtiæs patent dlscloses an electrlc ~lttlng ~or ef~ectlng a grounded, water tlght connection between an outlet box and a metal ~acketed cable connector.
There ls provlded a tubular connector having éxternally threaded oppoæite end portions lncludlng a rlange therebetween.
The externally threaded portlon is adapted to be secured ln an openlng ln one wall o~ an outlet box by means Or a lock nut that ls threaded on one Or the end portions. The opposite end portion o~ the tubular connector is provided wlth a counterbore that terminates in an lnclined shoulder.
A Kland-nut is threaded on the opposite end portion Or the tubular, connector and is provided wlth an internal rlange at lts outer end that defines an annular shoulder presenting an opening substantially larger than the æize of the cable.
A renilient, rubber-like bushing having tapered opposite ends .' .
.; .
`
is seated at one end on the inclined shoulder and a spring -metal disk of frusto-conical configuration in cross section and having a flange about its base end in the plane thereof is seated on the opposite end of the bushing with the `
flange being crimped between the bushing in the annular shoulder within the gland-nut whereby the bushing is shieded against exposure. A disk is provided centrally thereof with spaced openings formed on a radius corresponding -substantially so that of the cable to define individual, <`~
aligned fingers that are integral with and in the plane ~-thereof whereby when a cable is inserted through the disk and the bushing into the tubular connector, the cable is -supported centrally of the tubular connector and the fingers are bent out of the plane of the disk into intimate `
contact with the cable to establish a ground connection -through the outlet box.
. .. .
The structure taught by the Curtiss patent, , . :
; like the Collins et al structure is internal and is not -- readily visible to determine whether good electrical ground ` 20 has been effected or whether or not the disk has, in fact, .~ .
- been put into place at all. In addition, the Curtiss ; --- structure also suffers the defect of having to rely on the compressive force of the gland-nut when it is threaded on the tubular connector in order to compress the bushing.
Should the gland-nut become loose or should it not be tightened properly initially, it is quite likely that an ineffective ; ground connection will result.
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. . .
'.,'~
1(~67~67 ..
. . i Still another example Or the prior art to which - -the present invention i8 directed is shown in U.S. Patent No, 3,448,430, granted on June 3, 1969 to W. E. Kelly.
In the Kelly Patent, there is disclosed a longitudinally split grounding ring having a plural$ty Or outwardly angled ringers at one end thereof. The other end Or the grounding rlng i8 provided with a single pierclng tooth that e~tends rearwardly or in a direction that ls oppo~lte to the dlrectlon of lnsertlon Or the cable.
When a ~acketed cable 18 used wlth the Kelly structure, the finger is lnserted between the armor Or the cable and the plastlc ~acket thereabout. The piercing tooth, in comblnatlon with the wall Or the grounding ring i~ generally U-shaped and is arranged to receive between the legs thereof a re~illent grommet wlth the ~uncture between the piercing tooth and the wall Or the grounding ring serving as a stop ror the plastic ~acket Or the cable and the grommet. In the assembled condltlon Or the Kelly structure, the grommet is utilized ror forcing the piercing tooth against the armor o~ the cable and to ~orce the plurality o~ ringers agalnæt the connector body. As noted in the Kelly patent, the structure thereof may also be used without ~acketing ., .
on the armored cable. In such a use, the piercing tooth is positioned within the bore Or the grommet. However, the remaining structure and function is substantially the same as when the cable is ~acketed.
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1~67167 It will be evident from a reading of the Kelly patent that effective grounding is achieved utilizing the compressive forces of the grommet, a retaining ring and a gland-nut. It is particularly important to note that with the Kelly structure that grommet must exert a direct force on the ground ring in order to provide effective electrical grounding.
SU~ARY OF THE INVENTION
The present invention, in its broadest aspect, provides a grounding connector for coupling a jacketed, armored cable to a utilization device such as a junction box, said connector comprising the combination of a metallic body portion having first -and second external threads at opposite ends thereof, respectively, for engagement by said first threads with the utilization device, a resilient grommet having at least a portion thereof positioned within said body portion and arranged to bear against an outside surface of the cable in an assembled condition, a compression nut arranged to mate with said second threads on said body portion to thereby exert a force on said grommet whereby said grommet is compressed between said body portion and the outside surface of the cable, and a métallic grounding ring disposed within said body portion, said grounding ring having at least a partially circumferential, axially extending side wall defined by first and second ends, said grounding ring further including at least one elongated finger integral with said grounding ring - side wall proximate said first end thereof, one end of said finger pointing in a direction of the body portion end having said first threads, said direction being the direction of cable insertion, said side wall of said grounding ring being in contact with said body portion, whereby, in the assembled condition, said finger is in contact with the armor of the cable.
., ~ '.
1~67167 4" While there may be some superficial resemblance between the structure of the present invention and that disclosed in the Kelly patent, it will be appreciated that at least one important functional and structural distinction of the present invention over the Kelly structure resides in the fact that in the present invention the grounding ring is completely devoid of any contact with the grommet. That is, in the assembled condition, the grommet is utilized solely for the purpose of providing a seal and is axially spaced apart from the ~-grounding ring. The fingers of the grounding ring, ; according to the present invention, are initially formed at an angle with respect to the longitudinal axis of the grounding ring. When the cable is inserted into the body portion of the connector, the armored surface of the cable engages and deflects in an outward direction the - resilient fingers of ~he grounding ring. It should be further noted that in the assembled condition, the second - end of the fingers may engage the armored surface of the 12 cable and may bite into the cable to thereby inhibit - inadvertent disassembly of the cable.
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',' BRIEF DESCRIPTION OF THE DRAWINGS
With the above and additional features and ~.
advantages that will hereinafter appear, there is illustrated -in the accompanying drawings by way of example a preferred embodiment of the invention in which:
FIGURE 1 is an exploded, perspective view illustrating the components comprising the embodiment;
: FIGURE 2 is a longitudinal view, partially in section, illustrating the initial assembly of the grounding connector comprising the embodiment without a cable inserted therein; and FIGURE 3 is a longitudinal elevation~l view, ~-partially in section, illustrating the structure comprising ~ :
the embodiment with a jacketed, armored cable, assembled thereto.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawing, and in particular to FIGURE 1, there will be seen a grounding connector 10 comprising the present invention. The grounding connector . 20 10 includes a metallic body portion 12 including a first ; set of external threads 14 at one end thereof that are adapted for engagement with a utilization device such a~ a junction box or the like. The oppo~ite end ol the . , . , ',` ' '..'~' , body portion 12 is also provlded with a second set of external threads 16. The central section o~ the body portion 12 i8 provided wlth a plurality of flats, for example ln the shape of a hexagon 18, in order to permlt rotatlon of the body portlon 12 wlth a sultable tool.
A compresslon nut 20 havlng a plurallty Or rlats 22 formed on the outslde surface thereof ls also provlded wlth the flats 22 belng in the shape of a hexagon, for example, ln order to permlt rotatlon of the compresslon nut 20 by means of a conventlonal tool. A cup-shaped rrictlon washer 24 ls provided with a generally conical outer surface 26. A resllient grommet, generally de~lgnated by the reference character 28, havlng a generally cyllndrical outer central section 29 and flrst and second generally conl¢al outer ends 30 and 32 respectlvely, ls also lncluded.
' ' I
A reslllent, metalllc groundlng rlng 34 comprlslng , a portlon Or the present inventlon lncludes a partlally `~ clrcumferentlal, axlally extending wall 36 having ~irst ; 20 and second axlally spaced apart transverse ends 38 and . ~ . .
40, respectlvely. As best shown ln Flgure 2 and ln Flgure 3, there are a plurallty o~ reslllent, generally U-shaped connecting members 42 havlng one leg thereof formed integrally with the end 38 of the wall 36. A
resillent flnger 44 ls ~ormed lntegrally at one end thereof with the other leg of of each U-shaped connecting member 42.
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; Turnlng now specifically to Figure 2, it will be .~ seen that the connector body portion 12 is provlded wlth a transverse, lnternal seat 46 agalnst whlch the second end 40 of the groundlng ring wall 36 i8 posltloned. The end - .
, 40 1B substantlally flat io that the wall 36 Or the - grounding ring 34 bears against a longitudlnally extending bore 48 rormed lnternally Or the connector body 12. It ; should also be noted that the flngers 44 are inltially -:
ormed at an angle wlth respect to the longitudinal axls Or the connector rlng 34.
. .;
Stlll rererring to Figure 2, lt wlll be noted that the connector body 12 ls also provlded wlth a conlcal bore 50 at the end thereof that 18 ad~acent the ,.;, threads 16. The conlcal bore 50 ls arranged to recelve '-l the conlcal outer surrace 30 Or the reslllent grommet 28.
~;; The compresslon nut 20, wlth the conlcal surrace 26 Or the ~; frlctlon washer 24 bearlng agalnst a conlcal bore 52 ls then lnltlally mounted on the connector body 12 using the matlng engagement Or the threads 16 on the connector body .~. 20 12 and internal threads 54 rormed on the compression nut 20.
It should be noted at thls tlme that the longltudlnally . ~ spllt grounding 34 ls re~lllent and lnltlally has an outer , dlameter, as shown ln Figure 1, that is larger than the .~ bore 48 in the connector body 12. The grounding rlng 34, when lts outer dlameter is reduced for lnsertlon into the i connector body 12, will normally tend to spring outwardly ... `~ and thereby be held within the connector body 12, where the ~inal inserted diameter of the grounding ring 34 ls ~ubstantlally the same 31ze as the bore 48.
' -~ -10-. . -, ~(~67167 In order to complete the assembly, an armored cable, - generally deslgnated by the reference character 56, is lnserted lnto the connector lO rrom the end thereof derlned by the compresslon nut 22. The armored cable 56 may be compri~ed o~ one or more lndividual cables 58 each having .. its own conductor 60. A metallic ~acket or outer shell 62 ls rormed about the conductors 58 ~nd læ, ln turn, encapsulated ln a plastlc ~acket 64. Just prlor to assembly, a portlon Or the plastlc ~acket 64, for example, approxlmately l/2 inch, ls removed ln order to expose the metalllc armor 62. The cable 56 i8 then lnserted as shown in F~gure 3 and then the compression nut 20 . 1~ rurther tightened 80 that the lnside bore o~ the grommet 28 conrorms to the outslde surrace Or the plastic ; ~acket 64 ln order to provlde a water tlght seal. It wlll be noted at thls tlme that the tightening Or the ..
compression nut 20 causes the frictlon washer 24 to compress the rear or lert hand portion Or the grommet 28, as seen ln Flgure 3 whlle the conlcal bore 50 Or the :
~;. 20 connector body 12 compresses the right hand portlon Or the grommet 28. It ~hould also be noted at thls tlme ~.
that the grommet 28 is axlally spaced rrom and does not touch the groundlng rlng 34.
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1()67167 ,.
The construction of the present lnvention provides a groundlng connector that allows a metal, ~acketed cable to be lnstalled wlthout the dlsassembllng of the grounding connector and thereby overcomes an lmportant ob~ection that ls prevalent wlth prlor art constructlons. Electrlcal , groundlng continuity is positlve with the present lnvention and conforms to the requirements o~ various agencles such as CSA and UL. A watertight seal is developed when the compression nut i8 tightened on the connector body thereby compresslng the grommet lnto the taper o~ the connector body. In addltlon, the constructlon of the grommet about the cable also holds the cable agalnst an outward pul~lng force.
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When the cable 18 lnserted, the armor 62 thereof deflects the ~lngers 44 of the groundlng rlng, where each flnger 44 ls lndlvldually de~lected and has no assoclatlon wlth the deflectlon on any other flnger. A force 18 exerted by the groundlng rlng 34 agalnst both the armor of the v cable and the lnslde wall of the connector body as~urlng ,, :
good electrlcal contact at the~e polnts. The armor of the cable ls also captured, ln a llmlted sense, by the~e flngers 44 slnce the rree end of the flnger3 polnt ln , the same directlon as cable lnsertion and therefore act - like barbs to lnhiblt the lnadvertent disas~embly of the cable to the left.
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' The material used for the grounding ring may be non-magnetic grade o~ stalnless steel ln order to reduce the heating effect produced by induction when only a single conductor power cable (carrying high current) is used ln the 1(~67167 ,, ;,, connector. In thls case, the connector body ltselr would also be made Or a non-magnetlc materlal. The present lnvention as described herelnabove, substantlally , ~ .
~ reduces the cost Or manuracturlng and assembly.
:,', Numerous alterations Or the structure herein dlsclosed wlll suggest themselves to those skllled in `, the art. However, lt ls to be understood that the present dlsclosure relates to a prererred embodiment of the invention whlch 18 ror purpose~ Or lllustratlon , ~
, 10 only and ls not to be construed as a limltation Or 'i the inventlon.
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.
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, Thls inventlon relates generally to connectors or the llke and more partlcularly to an improved grounding ¢onnector for achieving a watertight connection between a Jacketed, lnterlocked armored cable and a ~unction box or the like.
One example of the prior art in the general fleld `
to which the present invention i8 directed, is disclosed in U.S. Patent No. 3,567,843 granted to K. M. Collins, et al. -on March 2, 1971. The Collins et al structure provides i, a body member having a first threaded portion that is ; adapted to be conne¢ted to a ~unctlon box, an internal conical bore and a second threaded portlon that i8 arranged to receive a compresslon nut. A resilient gro~met havlng a cyllndrlcal bore that is approximately equal to the outside diameter of the cable and a conlcal outer surface that is -; complementary to the conlcal bore ln the body member 18 inserted ln the body member. A plurallty of grounding stlrrups are crlmped to the grommet 80 that a portlon ; 20 thereof~ls in contact with the body member and simultaneously in contact with the metallic armor of the cable. While the Colllns et al patent does dlsclose effectlve structure, 18 also exhlblts several serlous drawbacks. First of all there is the necessity of performing additional operations in order to crimp the ' ''.
.'.` ~
.
, r ~()6~167 stlrrups to the grommet. Furthermore, the stirrups are internal and not visually accessible, should they be lnadvertently omltted such error wlll not be perceived readily and will thererore be an absence Or electrical grounding. Furthermore, the Collins et al patent relies on the compression rorce Or the nut and, while thls is usually efrectlve, it is unpredictable. Ir the nut is not suf~lciently tightened, the Collins et al structure wlll not provlde erflcient groundlng.
Still another example Or the prior art ls dlsclosed ln U.S. Patent No. 2,816,949, granted on December 17, 1957 to L. M. Curtl~s. The Curtiæs patent dlscloses an electrlc ~lttlng ~or ef~ectlng a grounded, water tlght connection between an outlet box and a metal ~acketed cable connector.
There ls provlded a tubular connector having éxternally threaded oppoæite end portions lncludlng a rlange therebetween.
The externally threaded portlon is adapted to be secured ln an openlng ln one wall o~ an outlet box by means Or a lock nut that ls threaded on one Or the end portions. The opposite end portion o~ the tubular connector is provided wlth a counterbore that terminates in an lnclined shoulder.
A Kland-nut is threaded on the opposite end portion Or the tubular, connector and is provided wlth an internal rlange at lts outer end that defines an annular shoulder presenting an opening substantially larger than the æize of the cable.
A renilient, rubber-like bushing having tapered opposite ends .' .
.; .
`
is seated at one end on the inclined shoulder and a spring -metal disk of frusto-conical configuration in cross section and having a flange about its base end in the plane thereof is seated on the opposite end of the bushing with the `
flange being crimped between the bushing in the annular shoulder within the gland-nut whereby the bushing is shieded against exposure. A disk is provided centrally thereof with spaced openings formed on a radius corresponding -substantially so that of the cable to define individual, <`~
aligned fingers that are integral with and in the plane ~-thereof whereby when a cable is inserted through the disk and the bushing into the tubular connector, the cable is -supported centrally of the tubular connector and the fingers are bent out of the plane of the disk into intimate `
contact with the cable to establish a ground connection -through the outlet box.
. .. .
The structure taught by the Curtiss patent, , . :
; like the Collins et al structure is internal and is not -- readily visible to determine whether good electrical ground ` 20 has been effected or whether or not the disk has, in fact, .~ .
- been put into place at all. In addition, the Curtiss ; --- structure also suffers the defect of having to rely on the compressive force of the gland-nut when it is threaded on the tubular connector in order to compress the bushing.
Should the gland-nut become loose or should it not be tightened properly initially, it is quite likely that an ineffective ; ground connection will result.
., .
. . .
'.,'~
1(~67~67 ..
. . i Still another example Or the prior art to which - -the present invention i8 directed is shown in U.S. Patent No, 3,448,430, granted on June 3, 1969 to W. E. Kelly.
In the Kelly Patent, there is disclosed a longitudinally split grounding ring having a plural$ty Or outwardly angled ringers at one end thereof. The other end Or the grounding rlng i8 provided with a single pierclng tooth that e~tends rearwardly or in a direction that ls oppo~lte to the dlrectlon of lnsertlon Or the cable.
When a ~acketed cable 18 used wlth the Kelly structure, the finger is lnserted between the armor Or the cable and the plastlc ~acket thereabout. The piercing tooth, in comblnatlon with the wall Or the grounding ring i~ generally U-shaped and is arranged to receive between the legs thereof a re~illent grommet wlth the ~uncture between the piercing tooth and the wall Or the grounding ring serving as a stop ror the plastic ~acket Or the cable and the grommet. In the assembled condltlon Or the Kelly structure, the grommet is utilized ror forcing the piercing tooth against the armor o~ the cable and to ~orce the plurality o~ ringers agalnæt the connector body. As noted in the Kelly patent, the structure thereof may also be used without ~acketing ., .
on the armored cable. In such a use, the piercing tooth is positioned within the bore Or the grommet. However, the remaining structure and function is substantially the same as when the cable is ~acketed.
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~ .
.
'" '' ; .
:
1~67167 It will be evident from a reading of the Kelly patent that effective grounding is achieved utilizing the compressive forces of the grommet, a retaining ring and a gland-nut. It is particularly important to note that with the Kelly structure that grommet must exert a direct force on the ground ring in order to provide effective electrical grounding.
SU~ARY OF THE INVENTION
The present invention, in its broadest aspect, provides a grounding connector for coupling a jacketed, armored cable to a utilization device such as a junction box, said connector comprising the combination of a metallic body portion having first -and second external threads at opposite ends thereof, respectively, for engagement by said first threads with the utilization device, a resilient grommet having at least a portion thereof positioned within said body portion and arranged to bear against an outside surface of the cable in an assembled condition, a compression nut arranged to mate with said second threads on said body portion to thereby exert a force on said grommet whereby said grommet is compressed between said body portion and the outside surface of the cable, and a métallic grounding ring disposed within said body portion, said grounding ring having at least a partially circumferential, axially extending side wall defined by first and second ends, said grounding ring further including at least one elongated finger integral with said grounding ring - side wall proximate said first end thereof, one end of said finger pointing in a direction of the body portion end having said first threads, said direction being the direction of cable insertion, said side wall of said grounding ring being in contact with said body portion, whereby, in the assembled condition, said finger is in contact with the armor of the cable.
., ~ '.
1~67167 4" While there may be some superficial resemblance between the structure of the present invention and that disclosed in the Kelly patent, it will be appreciated that at least one important functional and structural distinction of the present invention over the Kelly structure resides in the fact that in the present invention the grounding ring is completely devoid of any contact with the grommet. That is, in the assembled condition, the grommet is utilized solely for the purpose of providing a seal and is axially spaced apart from the ~-grounding ring. The fingers of the grounding ring, ; according to the present invention, are initially formed at an angle with respect to the longitudinal axis of the grounding ring. When the cable is inserted into the body portion of the connector, the armored surface of the cable engages and deflects in an outward direction the - resilient fingers of ~he grounding ring. It should be further noted that in the assembled condition, the second - end of the fingers may engage the armored surface of the 12 cable and may bite into the cable to thereby inhibit - inadvertent disassembly of the cable.
~' ';
`
' " , ' . , , ~
` .
',' BRIEF DESCRIPTION OF THE DRAWINGS
With the above and additional features and ~.
advantages that will hereinafter appear, there is illustrated -in the accompanying drawings by way of example a preferred embodiment of the invention in which:
FIGURE 1 is an exploded, perspective view illustrating the components comprising the embodiment;
: FIGURE 2 is a longitudinal view, partially in section, illustrating the initial assembly of the grounding connector comprising the embodiment without a cable inserted therein; and FIGURE 3 is a longitudinal elevation~l view, ~-partially in section, illustrating the structure comprising ~ :
the embodiment with a jacketed, armored cable, assembled thereto.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawing, and in particular to FIGURE 1, there will be seen a grounding connector 10 comprising the present invention. The grounding connector . 20 10 includes a metallic body portion 12 including a first ; set of external threads 14 at one end thereof that are adapted for engagement with a utilization device such a~ a junction box or the like. The oppo~ite end ol the . , . , ',` ' '..'~' , body portion 12 is also provlded with a second set of external threads 16. The central section o~ the body portion 12 i8 provided wlth a plurality of flats, for example ln the shape of a hexagon 18, in order to permlt rotatlon of the body portlon 12 wlth a sultable tool.
A compresslon nut 20 havlng a plurallty Or rlats 22 formed on the outslde surface thereof ls also provlded wlth the flats 22 belng in the shape of a hexagon, for example, ln order to permlt rotatlon of the compresslon nut 20 by means of a conventlonal tool. A cup-shaped rrictlon washer 24 ls provided with a generally conical outer surface 26. A resllient grommet, generally de~lgnated by the reference character 28, havlng a generally cyllndrical outer central section 29 and flrst and second generally conl¢al outer ends 30 and 32 respectlvely, ls also lncluded.
' ' I
A reslllent, metalllc groundlng rlng 34 comprlslng , a portlon Or the present inventlon lncludes a partlally `~ clrcumferentlal, axlally extending wall 36 having ~irst ; 20 and second axlally spaced apart transverse ends 38 and . ~ . .
40, respectlvely. As best shown ln Flgure 2 and ln Flgure 3, there are a plurallty o~ reslllent, generally U-shaped connecting members 42 havlng one leg thereof formed integrally with the end 38 of the wall 36. A
resillent flnger 44 ls ~ormed lntegrally at one end thereof with the other leg of of each U-shaped connecting member 42.
.
., - 9 -:; 1067167 ~ :~
., .. , - .
; Turnlng now specifically to Figure 2, it will be .~ seen that the connector body portion 12 is provlded wlth a transverse, lnternal seat 46 agalnst whlch the second end 40 of the groundlng ring wall 36 i8 posltloned. The end - .
, 40 1B substantlally flat io that the wall 36 Or the - grounding ring 34 bears against a longitudlnally extending bore 48 rormed lnternally Or the connector body 12. It ; should also be noted that the flngers 44 are inltially -:
ormed at an angle wlth respect to the longitudinal axls Or the connector rlng 34.
. .;
Stlll rererring to Figure 2, lt wlll be noted that the connector body 12 ls also provlded wlth a conlcal bore 50 at the end thereof that 18 ad~acent the ,.;, threads 16. The conlcal bore 50 ls arranged to recelve '-l the conlcal outer surrace 30 Or the reslllent grommet 28.
~;; The compresslon nut 20, wlth the conlcal surrace 26 Or the ~; frlctlon washer 24 bearlng agalnst a conlcal bore 52 ls then lnltlally mounted on the connector body 12 using the matlng engagement Or the threads 16 on the connector body .~. 20 12 and internal threads 54 rormed on the compression nut 20.
It should be noted at thls tlme that the longltudlnally . ~ spllt grounding 34 ls re~lllent and lnltlally has an outer , dlameter, as shown ln Figure 1, that is larger than the .~ bore 48 in the connector body 12. The grounding rlng 34, when lts outer dlameter is reduced for lnsertlon into the i connector body 12, will normally tend to spring outwardly ... `~ and thereby be held within the connector body 12, where the ~inal inserted diameter of the grounding ring 34 ls ~ubstantlally the same 31ze as the bore 48.
' -~ -10-. . -, ~(~67167 In order to complete the assembly, an armored cable, - generally deslgnated by the reference character 56, is lnserted lnto the connector lO rrom the end thereof derlned by the compresslon nut 22. The armored cable 56 may be compri~ed o~ one or more lndividual cables 58 each having .. its own conductor 60. A metallic ~acket or outer shell 62 ls rormed about the conductors 58 ~nd læ, ln turn, encapsulated ln a plastlc ~acket 64. Just prlor to assembly, a portlon Or the plastlc ~acket 64, for example, approxlmately l/2 inch, ls removed ln order to expose the metalllc armor 62. The cable 56 i8 then lnserted as shown in F~gure 3 and then the compression nut 20 . 1~ rurther tightened 80 that the lnside bore o~ the grommet 28 conrorms to the outslde surrace Or the plastic ; ~acket 64 ln order to provlde a water tlght seal. It wlll be noted at thls tlme that the tightening Or the ..
compression nut 20 causes the frictlon washer 24 to compress the rear or lert hand portion Or the grommet 28, as seen ln Flgure 3 whlle the conlcal bore 50 Or the :
~;. 20 connector body 12 compresses the right hand portlon Or the grommet 28. It ~hould also be noted at thls tlme ~.
that the grommet 28 is axlally spaced rrom and does not touch the groundlng rlng 34.
;.'' ~' ., ' .
' ' -11-:
1()67167 ,.
The construction of the present lnvention provides a groundlng connector that allows a metal, ~acketed cable to be lnstalled wlthout the dlsassembllng of the grounding connector and thereby overcomes an lmportant ob~ection that ls prevalent wlth prlor art constructlons. Electrlcal , groundlng continuity is positlve with the present lnvention and conforms to the requirements o~ various agencles such as CSA and UL. A watertight seal is developed when the compression nut i8 tightened on the connector body thereby compresslng the grommet lnto the taper o~ the connector body. In addltlon, the constructlon of the grommet about the cable also holds the cable agalnst an outward pul~lng force.
.'" ~
When the cable 18 lnserted, the armor 62 thereof deflects the ~lngers 44 of the groundlng rlng, where each flnger 44 ls lndlvldually de~lected and has no assoclatlon wlth the deflectlon on any other flnger. A force 18 exerted by the groundlng rlng 34 agalnst both the armor of the v cable and the lnslde wall of the connector body as~urlng ,, :
good electrlcal contact at the~e polnts. The armor of the cable ls also captured, ln a llmlted sense, by the~e flngers 44 slnce the rree end of the flnger3 polnt ln , the same directlon as cable lnsertion and therefore act - like barbs to lnhiblt the lnadvertent disas~embly of the cable to the left.
. , ~
' The material used for the grounding ring may be non-magnetic grade o~ stalnless steel ln order to reduce the heating effect produced by induction when only a single conductor power cable (carrying high current) is used ln the 1(~67167 ,, ;,, connector. In thls case, the connector body ltselr would also be made Or a non-magnetlc materlal. The present lnvention as described herelnabove, substantlally , ~ .
~ reduces the cost Or manuracturlng and assembly.
:,', Numerous alterations Or the structure herein dlsclosed wlll suggest themselves to those skllled in `, the art. However, lt ls to be understood that the present dlsclosure relates to a prererred embodiment of the invention whlch 18 ror purpose~ Or lllustratlon , ~
, 10 only and ls not to be construed as a limltation Or 'i the inventlon.
. ,.1 : .
.' ' .
,,'', ~',.
,, ' ': ,:
,~ . ...
.- .~, . , . .
.. . .
,. ~ , . ~. ,,'~ .
~ - .
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:
:
.
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Claims (10)
1. A grounding connector for coupling a jacketed, armored cable to a utilization device such as a junction box, said connector comprising the combination of a metallic body portion having first and second external threads at opposite ends thereof, respectively, for engagement by said first threads with the utilization device, a resilient grommet having at least a portion thereof positioned within said body portion and arranged to bear against an outside surface of the cable in an assembled condition, a compression nut arranged to mate with said second threads on said body portion to thereby exert a force on said grommet whereby said grommet is compressed between said body portion and the outside surface of the cable, and a metallic grounding ring disposed within said body portion, said grounding ring having at least a partially circumferential, axially extending side wall defined by first and second ends, said grounding ring further including at least one elongated finger integral with said grounding ring side wall proximate said first end thereof, one end of said finger pointing in a direction Or the body portion end having said first threads, said direction being the direction of cable insertion, said side wall of said grounding ring being in contact with said body portion, whereby, in the assembled condition, said finger is in contact with the armor of the cable.
2. A connector according to Claim 1, wherein there is a plurality of said ringer, said fingers being angularly spaced apart from each other.
3. A connector according to Claim 2, wherein said fingers are intially disposed at an angle with respect to the longitudinal axis of said grounding ring prior to being engaged by the armor of the cable.
4. A connector according to Claim 1, wherein said one end of said finger is arranged to engage the outer surface of the armor of the cable for inhibiting the disassembly thereof.
5. A connector according to Claim 1, wherein said grounding ring includes a U-shaped member having a first leg thereof integral with said first end of said grounding ring side wall and having a second leg thereof integral with said finger.
6. A connector according to Claim 1, wherein said body portion includes an internal, transverse seat and wherein said second end of said grounding ring side wall is positioned against said seat in the assembled condition.
7. A connector according to Claim 6, wherein said second end of said grounding ring side wall is flat.
8. A connector according to Claim 1, wherein there is further included a friction washer positioned intermediate a portion of said grommet and said compression nut.
9. A connector according to Claim 8, wherein said friction washer is conical and is positioned between a conical surface at one end of said grommet and a conical bore in said compression nut.
10. A connector according to Claim 1, wherein said grounding ring is spilt across said side wall from said first end to said second end.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/696,546 US4022966A (en) | 1976-06-16 | 1976-06-16 | Ground connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1067167A true CA1067167A (en) | 1979-11-27 |
Family
ID=24797510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA273,967A Expired CA1067167A (en) | 1976-06-16 | 1977-03-15 | Ground connector for a jacketed armored electric cable |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4022966A (en) |
| CA (1) | CA1067167A (en) |
Families Citing this family (81)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273405A (en) * | 1979-08-13 | 1981-06-16 | Thomas & Betts Corporation | Jacketed metal clad cable connector |
| DE3017383C2 (en) * | 1980-05-07 | 1982-05-06 | Dietrich 7778 Markdorf Grünau | Cable gland for control cabinets |
| US4331374A (en) * | 1980-07-24 | 1982-05-25 | The United States Of America As Represented By The Secretary Of The Navy | Coaxial termination for cable in-line electronic applications |
| US4490576A (en) * | 1981-08-10 | 1984-12-25 | Appleton Electric Co. | Connector for use with jacketed metal clad cable |
| DE3201142A1 (en) * | 1982-01-15 | 1984-03-29 | Allied Corp., Morris Township, N.J. | CONNECTOR |
| CA1179029A (en) * | 1982-04-22 | 1984-12-04 | John B. Hutchison | Electric cable glands |
| US4538053A (en) * | 1983-01-11 | 1985-08-27 | Raychem Corporation | Termination apparatus for heaters in hazardous environments |
| US4547623A (en) * | 1983-10-07 | 1985-10-15 | Automation Industries, Inc. | Cable shield grounding apparatus |
| US4591216A (en) * | 1984-07-17 | 1986-05-27 | Cooper Industries, Inc. | Grounding shielded cable connector assembly |
| US4885429A (en) * | 1989-01-10 | 1989-12-05 | Hubbell Incorporated | Metal clad cable connector |
| US5059747A (en) * | 1989-12-08 | 1991-10-22 | Thomas & Betts Corporation | Connector for use with metal clad cable |
| FR2670615B1 (en) * | 1990-12-18 | 1993-02-19 | Radiall Sa | COAXIAL ELECTRICAL CONNECTOR. |
| US5278352A (en) * | 1991-07-03 | 1994-01-11 | The United States Of America As Represented By The Secretary Of The Navy | Grounding ring for ground adapters |
| US5321205B1 (en) * | 1993-01-15 | 1997-02-04 | Thomas & Betts Corp | Electrical connector fitting |
| US5374785A (en) * | 1993-01-26 | 1994-12-20 | Thomas & Betts Corporation | Hub locknut |
| JP3211587B2 (en) * | 1994-09-27 | 2001-09-25 | 住友電装株式会社 | Earth structure of shielded wire |
| FI97175C (en) * | 1994-12-13 | 1996-10-25 | Abb Industry Oy | Connector for connecting a three-phase cable and the method of manufacturing the connector |
| PT908995E (en) * | 1997-09-16 | 2004-03-31 | Agro Ag | CABLE REMOVAL FOR A RESTRICTED CABLE |
| JP3792914B2 (en) * | 1998-10-13 | 2006-07-05 | 矢崎総業株式会社 | Shield wire connection structure |
| US6664473B2 (en) * | 2001-03-22 | 2003-12-16 | Interlink Bt | Connector assembly for armored cable |
| US6444907B1 (en) | 2001-05-01 | 2002-09-03 | Bridgeport Fittings, Inc. | Electrical cable connector |
| US7002077B2 (en) * | 2004-03-01 | 2006-02-21 | Thomas & Betts International, Inc. | Threadless conduit fitting including continuous compression ring |
| US8157589B2 (en) | 2004-11-24 | 2012-04-17 | John Mezzalingua Associates, Inc. | Connector having a conductively coated member and method of use thereof |
| US7114990B2 (en) * | 2005-01-25 | 2006-10-03 | Corning Gilbert Incorporated | Coaxial cable connector with grounding member |
| US7507907B2 (en) * | 2006-09-22 | 2009-03-24 | Lapp Engineering & Co. | Cable feed-through |
| US8113875B2 (en) | 2008-09-30 | 2012-02-14 | Belden Inc. | Cable connector |
| US8025518B2 (en) | 2009-02-24 | 2011-09-27 | Corning Gilbert Inc. | Coaxial connector with dual-grip nut |
| US7878832B2 (en) | 2009-03-25 | 2011-02-01 | Culture Bright Ltd | Underwater connector with a deformable insertion member and a sealing member squeezed by a clamping member |
| US7824216B2 (en) | 2009-04-02 | 2010-11-02 | John Mezzalingua Associates, Inc. | Coaxial cable continuity connector |
| US9570845B2 (en) | 2009-05-22 | 2017-02-14 | Ppc Broadband, Inc. | Connector having a continuity member operable in a radial direction |
| US8444445B2 (en) | 2009-05-22 | 2013-05-21 | Ppc Broadband, Inc. | Coaxial cable connector having electrical continuity member |
| US8287320B2 (en) | 2009-05-22 | 2012-10-16 | John Mezzalingua Associates, Inc. | Coaxial cable connector having electrical continuity member |
| US8573996B2 (en) | 2009-05-22 | 2013-11-05 | Ppc Broadband, Inc. | Coaxial cable connector having electrical continuity member |
| US9017101B2 (en) | 2011-03-30 | 2015-04-28 | Ppc Broadband, Inc. | Continuity maintaining biasing member |
| US8272893B2 (en) | 2009-11-16 | 2012-09-25 | Corning Gilbert Inc. | Integrally conductive and shielded coaxial cable connector |
| EP2505116B1 (en) * | 2010-01-25 | 2014-02-26 | Olympus Medical Systems Corp. | Electronic endoscope |
| TWI549386B (en) | 2010-04-13 | 2016-09-11 | 康寧吉伯特公司 | Coaxial connector with inhibited ingress and improved grounding |
| US8888526B2 (en) | 2010-08-10 | 2014-11-18 | Corning Gilbert, Inc. | Coaxial cable connector with radio frequency interference and grounding shield |
| US8323053B2 (en) | 2010-10-18 | 2012-12-04 | John Mezzalingua Associates, Inc. | Connector having a constant contact nut |
| US8167635B1 (en) | 2010-10-18 | 2012-05-01 | John Mezzalingua Associates, Inc. | Dielectric sealing member and method of use thereof |
| TWI558022B (en) | 2010-10-27 | 2016-11-11 | 康寧吉伯特公司 | Push-on cable connector with a coupler and retention and release mechanism |
| US8337229B2 (en) | 2010-11-11 | 2012-12-25 | John Mezzalingua Associates, Inc. | Connector having a nut-body continuity element and method of use thereof |
| CH704182A2 (en) | 2010-12-01 | 2012-06-15 | Agro Ag | Holding device for holding a cable. |
| US8414322B2 (en) | 2010-12-14 | 2013-04-09 | Ppc Broadband, Inc. | Push-on CATV port terminator |
| US20120178290A1 (en) * | 2011-01-11 | 2012-07-12 | Chih-Min Yu | Solar power cable connector |
| US8398421B2 (en) | 2011-02-01 | 2013-03-19 | John Mezzalingua Associates, Inc. | Connector having a dielectric seal and method of use thereof |
| US8157588B1 (en) | 2011-02-08 | 2012-04-17 | Belden Inc. | Cable connector with biasing element |
| US8465322B2 (en) | 2011-03-25 | 2013-06-18 | Ppc Broadband, Inc. | Coaxial cable connector |
| US8366481B2 (en) | 2011-03-30 | 2013-02-05 | John Mezzalingua Associates, Inc. | Continuity maintaining biasing member |
| US8388377B2 (en) | 2011-04-01 | 2013-03-05 | John Mezzalingua Associates, Inc. | Slide actuated coaxial cable connector |
| US9711917B2 (en) | 2011-05-26 | 2017-07-18 | Ppc Broadband, Inc. | Band spring continuity member for coaxial cable connector |
| US9203167B2 (en) | 2011-05-26 | 2015-12-01 | Ppc Broadband, Inc. | Coaxial cable connector with conductive seal |
| US8758050B2 (en) | 2011-06-10 | 2014-06-24 | Hiscock & Barclay LLP | Connector having a coupling member for locking onto a port and maintaining electrical continuity |
| US8766109B2 (en) | 2011-06-27 | 2014-07-01 | Thomas & Betts International, Inc. | Cable connector with bushing element |
| US8591244B2 (en) | 2011-07-08 | 2013-11-26 | Ppc Broadband, Inc. | Cable connector |
| US8895877B2 (en) * | 2011-09-07 | 2014-11-25 | Thomas & Betts International, LLC. | Electrical connector bushing |
| US9190744B2 (en) | 2011-09-14 | 2015-11-17 | Corning Optical Communications Rf Llc | Coaxial cable connector with radio frequency interference and grounding shield |
| US20130072057A1 (en) | 2011-09-15 | 2013-03-21 | Donald Andrew Burris | Coaxial cable connector with integral radio frequency interference and grounding shield |
| US8747126B2 (en) | 2011-10-11 | 2014-06-10 | The United States Of America As Represented By The Secretary Of The Navy | Universal ground adapter for marine cables |
| US8562361B2 (en) * | 2011-10-11 | 2013-10-22 | The United States Of America As Represented By The Secretary Of The Navy | Universal ground adapter for marine cables |
| US9147955B2 (en) | 2011-11-02 | 2015-09-29 | Ppc Broadband, Inc. | Continuity providing port |
| US9350154B2 (en) * | 2011-11-10 | 2016-05-24 | Thomas & Betts International Llc | Liquid-tight conduit fitting with grounding element |
| US8979557B2 (en) * | 2011-11-10 | 2015-03-17 | Thomas & Betts International, Inc. | Liquid-tight conduit fitting with grounding element |
| US9136654B2 (en) | 2012-01-05 | 2015-09-15 | Corning Gilbert, Inc. | Quick mount connector for a coaxial cable |
| US9407016B2 (en) | 2012-02-22 | 2016-08-02 | Corning Optical Communications Rf Llc | Coaxial cable connector with integral continuity contacting portion |
| US9287659B2 (en) | 2012-10-16 | 2016-03-15 | Corning Optical Communications Rf Llc | Coaxial cable connector with integral RFI protection |
| JP5238913B1 (en) * | 2012-10-26 | 2013-07-17 | アサヒ電子株式会社 | Cable bushing |
| US9147963B2 (en) | 2012-11-29 | 2015-09-29 | Corning Gilbert Inc. | Hardline coaxial connector with a locking ferrule |
| US9153911B2 (en) | 2013-02-19 | 2015-10-06 | Corning Gilbert Inc. | Coaxial cable continuity connector |
| US9172154B2 (en) | 2013-03-15 | 2015-10-27 | Corning Gilbert Inc. | Coaxial cable connector with integral RFI protection |
| US10290958B2 (en) | 2013-04-29 | 2019-05-14 | Corning Optical Communications Rf Llc | Coaxial cable connector with integral RFI protection and biasing ring |
| EP3000154B1 (en) | 2013-05-20 | 2019-05-01 | Corning Optical Communications RF LLC | Coaxial cable connector with integral rfi protection |
| US9548557B2 (en) | 2013-06-26 | 2017-01-17 | Corning Optical Communications LLC | Connector assemblies and methods of manufacture |
| US9048599B2 (en) | 2013-10-28 | 2015-06-02 | Corning Gilbert Inc. | Coaxial cable connector having a gripping member with a notch and disposed inside a shell |
| US9548572B2 (en) | 2014-11-03 | 2017-01-17 | Corning Optical Communications LLC | Coaxial cable connector having a coupler and a post with a contacting portion and a shoulder |
| US10033122B2 (en) | 2015-02-20 | 2018-07-24 | Corning Optical Communications Rf Llc | Cable or conduit connector with jacket retention feature |
| US9590287B2 (en) | 2015-02-20 | 2017-03-07 | Corning Optical Communications Rf Llc | Surge protected coaxial termination |
| US10211547B2 (en) | 2015-09-03 | 2019-02-19 | Corning Optical Communications Rf Llc | Coaxial cable connector |
| US9525220B1 (en) | 2015-11-25 | 2016-12-20 | Corning Optical Communications LLC | Coaxial cable connector |
| US10767801B2 (en) | 2017-03-03 | 2020-09-08 | Ripley's, Inc. | Conduit coupling adapter |
| US10079447B1 (en) * | 2017-07-21 | 2018-09-18 | Pct International, Inc. | Coaxial cable connector with an expandable pawl |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816949A (en) * | 1952-11-17 | 1957-12-17 | Thomas & Betts Corp | Armoured cable mounting |
| US2821567A (en) * | 1957-04-01 | 1958-01-28 | Thomas & Betts Corp | Flexible liquid-tight conduit connectors |
| US3006664A (en) * | 1958-01-06 | 1961-10-31 | Appleton Electric Co | Self-sealing fitting for flexible conduit |
| US3448430A (en) * | 1967-01-23 | 1969-06-03 | Thomas & Betts Corp | Ground connector |
| US3567843A (en) * | 1968-11-06 | 1971-03-02 | Grouse Hinds Co | Electrical connector for waterproof jacketed armored cable |
| US3897125A (en) * | 1974-07-12 | 1975-07-29 | Bunker Ramo | Captivated grounding spring |
-
1976
- 1976-06-16 US US05/696,546 patent/US4022966A/en not_active Expired - Lifetime
-
1977
- 1977-03-15 CA CA273,967A patent/CA1067167A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4022966A (en) | 1977-05-10 |
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