US3797107A - Backplane manufacture - Google Patents
Backplane manufacture Download PDFInfo
- Publication number
- US3797107A US3797107A US00312812A US3797107DA US3797107A US 3797107 A US3797107 A US 3797107A US 00312812 A US00312812 A US 00312812A US 3797107D A US3797107D A US 3797107DA US 3797107 A US3797107 A US 3797107A
- Authority
- US
- United States
- Prior art keywords
- backplane
- apertures
- plugs
- plug
- aperture
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/0447—Hand tools therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
- Y10T29/49165—Manufacturing circuit on or in base by forming conductive walled aperture in base
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
- Y10T29/5177—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means and work-holder for assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53257—Means comprising hand-manipulatable implement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53478—Means to assemble or disassemble with magazine supply
- Y10T29/53487—Assembling means comprising hand-manipulatable implement
- Y10T29/53496—Assembling means comprising hand-manipulatable implement comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
Definitions
- ABSTRACT A method is described for manufacturing a backplane in which plugs are inserted into apertures in the backplane to mask the surfaces of the apertures. A nonconductive coating is formed on the backplane while the plugs are positioned in such apertures. Thereafter, electrical contacts are inserted into the apertures to remove the plugs therefrom.
- Backplane connector technology is the art of mounting and arranging electrical contacts on a metal plate, typically an aluminum alloy. Such a plate is usually machine-punched to provide a plurality of apertures positioned in a precise grid. After punching the apertures, the backplane is anodized to provide a corrosionpreventing and electrically non-conductive surface layer.
- the apertures are used for mounting and positioning backplane connector contacts. It is necessary that the contacts be conductively inserted into the anodized backplane. To obtain this conductive connection usually requires drilling or reaming of the apertures to remove the anodizing layer
- the anodizing layer is a very hard material and difficult to remove. Thus, the reaming operation is time-consuming and costly. Therefore, what is needed and constitutes the principal object of the present invention, is to provide an improved method for inhibiting the anodizing layer from the surface of backplane apertures.
- a backplane has been punched to provide a plurality of apertures therein
- plugs are inserted in selected apertures to mask the surfaces thereof.
- the backplane is then anodized, while the plugs are positioned in such apertures, so that the surfaces of the apertures will not be anodized.
- the plugs are removed therefrom, preferably by inserting the electrical contacts into the apertures thereby forcing the plugs out of the apertures in a single step.
- FIG. 1 is a perspective view of the tool of the present invention used for inserting plugs in a backplane, a portion of the backplane being illustrated adjacent the forward end of the tool;
- FIG. 2 is a partial vertical sectional view taken along line 2-2 of FIG. 1 showing a plug in the tool in position tobe driven into a backplane aperture;
- FIG. 3 is a partial sectional view similar to FIG. 2 showing the tool after it has inserted a plug into the backplane aperture;
- FIG. 4 is a transverse sectional view taken along line 4-4 of FIG. 2;
- FIG. 5 is a transverse sectional view taken along line 5-5 of-FIG. 3;
- FIG. 6 is an end view of the tool taken along lines 6-6 of FIG. 2; 1
- FIG. 7 is an enlarged horizontal sectional view take along line 7-7 of FIG. 2 showing the indexing mechanism of the tool;
- FIG. 8 is an enlarged side elevation of a series of plugs connected to a common carrier strip
- FIG. 9 is a transverse sectional view taken along 9-9 of FIG. 8;
- FIG. '10 is a partial sectional view taken through a backplane showing a plug mounted therein with an electrical contact positioned to be inserted into the backplane aperture carrying the plug;
- FIG. 11 is a sectional view similar to FIG. 10 showing the contact mounted in the backplane aperture and the plug removed therefrom.
- a backplane normally an aluminum plate, is punched to provide a plurality of apertures therein.
- Plastic plugs are then inserted into selected apertures in the backplane to mask the surfaces of the apertures.
- the backplane is anodized while the plugs are positioned in such apertures to provide a non-conductive coating on the backplane except upon the surfaces of the apertures masked by the plugs.
- the plug in the aperture is removed and a contact inserted therein.
- this is accomplished in a single step by forcing the contact, or a metallic bushing carrying the contact, into the aperture simultaneously removing the plug from the aperture.
- reaming of the backplane apertures is not necessary since no anodization has occurred where the plugs are mounted in the apertures.
- a substantial reduction in manufacturing time and expense in manufacturing backplanes is provided by the present invention.
- the plugs are cylindrical plastic elements formed at their forward ends with'a chamfered guiding surface 12 and at their rear ends with an outwardly extending flange 14.
- the plugs are connected in parallel juxtaposition to a common flexible carrier strip 16 by tongues 18.
- the strip 16 extends transversely of the plugs 10 and is formed on its lower surface with teeth 20 in alignment with the plugs.
- the tongues 18 are of generally triangular configuration.
- the base 22 of each tongue is adjacent to and integral with the strip 16.
- the tongue extends laterally from the strip adjacent to its upper surface 24.
- the apex or narrow section 26'of the triangular tongue is integral with and connected to the bottom 28 of flange 14 on the plug.
- the upper surface 24 of the strip 16, the tongue 18, and the bottom of the plug lie in substantially the same horizontal plane.
- FIG. 1 there is seen a section of a backplane 30 having a plurality of apertures 32 formed therein. Plugs 10 are shown as being positioned in two of the apertures.
- the tool for inserting the plugs in the backplane apertures generally indicated by reference numeral 34, comprises an elongated, cylindrical barrel 36 having a plunger 38 slidably mounted within the bore 40 within the barrel.
- a retaining cap 42 is threadably mounted on the rear portion of the barrel 36.
- a stem 44 on the plunger 38 extends outwardly through an opening 46 in the cap and terminates in a handle 48.
- the bore of the barrel 36 terminates in a shoulder which is spaced from the forward end 52 of the barre].
- a reduced diameter bore 54 extends from the bore 40 to such forward end.
- a transverse slot 55 extends from the bore 54 to one side of the barrel 36 as best seen in FIGS. 1 and 6.
- a transversely extending passageway 56 passes through the barrel body 36 and intersects the bottom of the bore 54 near the rear of the bore but forward of the shoulder 50.
- the sidewalls of the passageway 56 are spaced apart a distance slightly greater than the width of .the teeth 20 on the carrier strip 16 which carries the plugs 10.
- the height of the slot 55 is sufficient to receive the plugs 10 carried by the strip 16.
- the strip of plugs is fed through the passageway 56 by an indexing wheel 58 which is rotatably mounted in a generally horizontally extending cavity 60 extending to the opposite sidewalls of the barrel 36.
- the wheel 58 projects from the sides of the barrel so that it can be turned by thumb and finger and held in position to align successive plugs 10 with the bore 54.
- the wheel 58 is rotatably mounted in the cavity 60 by means of a cylindrical boss 62 which extends into a vertically extending cylindrical opening 64 in the lower wall of the barrel 36.
- a longitudinally extending channel 66 of generally square cross-section is formed in the lower portion of the plunger 38.
- a pawl or detent bar 68 is slidably mounted in the forward portion of the channel 66 and is urged in a forward direction by means ofa coil spring 50 lying lengthwise in the channel.
- the forward portion of the pawl 68 is formed with a curved surface 70, as best seen in FIG. 7, which is engageable with concave recesses 72 formed about the outer periphery of the indexing wheel 58.
- the spring biased pawl serves to releasably hold the wheel in a position wherein the respective plugs 10 on the strip 16 are in alignment with the bore 54.
- Upstanding pins 74 extend from the upper surface 76 of the wheel 58 intermediate the recesses 72. These pins are ofa height which allows them to engage the sides of the teeth 20 on the carrier strip 16 so that upon rotation of the indexing wheel the strip will be fed through the transverse passageway 56.
- the plunger 38 is provided at its forward end with a small cylindrical section 80 of a diameter less than that of the bore 54 in the forward end of the barrel.
- the forward section 80 of the plunger is dimensioned so that its lower surface 82 is spaced above the bottom of the bore 54 a distance slightly greater than the thickness of the tongue 18 on the carrier strip 16 so that the forward section of the plunger may slide over the upper surface of the tongue 18.
- a guide pin 84 is formed on the forward section 80 of the plunger. This pin has a diameter slightly less than the diameter of the bore 86 in the plug 10 and is coaxial therewith when the plug is positioned within the bore 54 of the barrel. In the use of the tool 34 in the method of the present invention, the tool is aligned with an aperture 32 in the backplane 30.
- the strip 16 carrying the plugs 10 is fed through the passageway 56 of the barrel by rotating the indexing wheel 58.
- the plunger 38 is moved forwardly to insert the pin 84 within the plug bore 86.
- the shoulder 86 formed between the pin and the forward section 80 of the barrel engages the rear 90 of the plug.
- Further forward movement of the plunger will cause the tongue 18 to tear at its connection to the plug at the apex 26 and the plug will be moved out of the bore 54 and driven into the aperture 32 in the backplane, as seen in FIG. 3.
- the plunger is retracted and the indexing wheel rotated to bring successive plugs into alignment with the bore 54 of the barrel for further plugging operations.
- FIGS. 10 and 11 illustrate an electrical contact element which is mounted in a metal bushing 102.
- the contact is passed through the plug 10 in the backplane 30 until the bushing engages the plug.
- the bushing is then forced in a rightward direction as indicated by the arrow in FIG. 10 to push the plug 10 out of the backplane aperture 32 so that the bushing replaces the plug as seen in FIG. 11.
- the bushing 102 can be eliminated and the contact 100, if formed with a sufficiently wide body portion, may be press-fitted directly in the aperture 32.
- the plug 10 is removed from the backplane aperture 32 and an electrical contact is positioned in the backplane in electrical engagement therewith.
- the plug 10 may be removed from the backplane in one step and the contact mounted in the backplane in a second subsequent step.
- the method of the present invention wherein the aperture surfaces 32 are masked during the anodizing procedure, the time-consuming and expensive procedure of reaming plated backplane apertures is eliminated.
- said backplane is formed of aluminum; and said coating is formed by anodizing said backplane.
- said plugs are torn from said strip upon insertion into said apertures.
- said plugs are removed from said apertures by mounting said conductive elements in said apertures.
Abstract
A method is described for manufacturing a backplane in which plugs are inserted into apertures in the backplane to mask the surfaces of the apertures. A nonconductive coating is formed on the backplane while the plugs are positioned in such apertures. Thereafter, electrical contacts are inserted into the apertures to remove the plugs therefrom.
Description
United States Patent [191 Anhalt et a1.
[4 1 Mar. 19, 1974 BACKPLANE MANUFACTURE [75] 1 Inventors: John W. Anhalt, La Crescenta;
David S. Goodman, Orange, both of Calif.
[73] Assignee: International Telephone and Telegraph Corporation, New York, NY.
[22] Filed: Dec. 7, 1972 [21] Appl. No.: 312,812
52] US. on. 29/625, 29/212 R [51] rm. Cl. H05k 13/04, B23q 7/10 [58] Field of Search 29/212 R, 200 R, 200 D,
[56] References Cited UNITED STATES PATENTS Grupp 29/212 R Freehauf et a1 29/625 Shaheen 29/625 Primary Examiner-Thomas H. Eager Attorney, Agent, or Firm-Thomas L. Peterson [57] ABSTRACT A method is described for manufacturing a backplane in which plugs are inserted into apertures in the backplane to mask the surfaces of the apertures. A nonconductive coating is formed on the backplane while the plugs are positioned in such apertures. Thereafter, electrical contacts are inserted into the apertures to remove the plugs therefrom.
5 Claims, 11 Drawing Figures PAT MARIQIQ? SHEET 1 BF 2 1 BACKPLANE MANUFACTURE BACKGROUND OF THE INVENTION 1. FIELD OF THE INVENTION This invention relates generally to backplane manufacture and, more particularly, to an improved method for manufacturing backplanes.
2. DESCRIPTION OF THE PRIOR ART Backplane connector technology is the art of mounting and arranging electrical contacts on a metal plate, typically an aluminum alloy. Such a plate is usually machine-punched to provide a plurality of apertures positioned in a precise grid. After punching the apertures, the backplane is anodized to provide a corrosionpreventing and electrically non-conductive surface layer. The apertures are used for mounting and positioning backplane connector contacts. It is necessary that the contacts be conductively inserted into the anodized backplane. To obtain this conductive connection usually requires drilling or reaming of the apertures to remove the anodizing layer The anodizing layer is a very hard material and difficult to remove. Thus, the reaming operation is time-consuming and costly. Therefore, what is needed and constitutes the principal object of the present invention, is to provide an improved method for inhibiting the anodizing layer from the surface of backplane apertures.
SUMMARY OF THE INVENTION According to the principal aspect of the present invention, after a backplane has been punched to provide a plurality of apertures therein, plugs are inserted in selected apertures to mask the surfaces thereof. The backplane is then anodized, while the plugs are positioned in such apertures, so that the surfaces of the apertures will not be anodized. In those apertures where it is desired to make an electrical connection to the backplane, the plugs are removed therefrom, preferably by inserting the electrical contacts into the apertures thereby forcing the plugs out of the apertures in a single step. Thus, by this invention, the step of reaming apertures in backplanes is eliminated thereby substantially reducing the time and expense in manufacturing backplanes.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the tool of the present invention used for inserting plugs in a backplane, a portion of the backplane being illustrated adjacent the forward end of the tool;
FIG. 2 is a partial vertical sectional view taken along line 2-2 of FIG. 1 showing a plug in the tool in position tobe driven into a backplane aperture;
FIG. 3 is a partial sectional view similar to FIG. 2 showing the tool after it has inserted a plug into the backplane aperture;
FIG. 4 is a transverse sectional view taken along line 4-4 of FIG. 2;
FIG. 5 is a transverse sectional view taken along line 5-5 of-FIG. 3;
FIG. 6 is an end view of the tool taken along lines 6-6 of FIG. 2; 1
FIG. 7 is an enlarged horizontal sectional view take along line 7-7 of FIG. 2 showing the indexing mechanism of the tool;
' FIG. 8 is an enlarged side elevation of a series of plugs connected to a common carrier strip;
FIG. 9 is a transverse sectional view taken along 9-9 of FIG. 8;
FIG. '10 is a partial sectional view taken through a backplane showing a plug mounted therein with an electrical contact positioned to be inserted into the backplane aperture carrying the plug; and
FIG. 11 is a sectional view similar to FIG. 10 showing the contact mounted in the backplane aperture and the plug removed therefrom.
DESCRIPTION OF THE PREFERRED EMBODIMENT According to the method of the present invention, a backplane, normally an aluminum plate, is punched to provide a plurality of apertures therein. Plastic plugs are then inserted into selected apertures in the backplane to mask the surfaces of the apertures. Thereafter the backplane is anodized while the plugs are positioned in such apertures to provide a non-conductive coating on the backplane except upon the surfaces of the apertures masked by the plugs. In those apertures where it is desired to position an electrical contact for electrical connection to the backplane, the plug in the aperture is removed and a contact inserted therein. Preferably, this is accomplished in a single step by forcing the contact, or a metallic bushing carrying the contact, into the aperture simultaneously removing the plug from the aperture. Thus, reaming of the backplane apertures is not necessary since no anodization has occurred where the plugs are mounted in the apertures. Thus, a substantial reduction in manufacturing time and expense in manufacturing backplanes is provided by the present invention.
Reference is now made to the drawings which illustrate the plastic plugs utilized in the method of the present invention and a tool for inserting the plugs in backplane apertures. The plugs, generally designated 10, are cylindrical plastic elements formed at their forward ends with'a chamfered guiding surface 12 and at their rear ends with an outwardly extending flange 14. The plugs are connected in parallel juxtaposition to a common flexible carrier strip 16 by tongues 18. The strip 16 extends transversely of the plugs 10 and is formed on its lower surface with teeth 20 in alignment with the plugs. The tongues 18 are of generally triangular configuration. The base 22 of each tongue is adjacent to and integral with the strip 16. The tongue extends laterally from the strip adjacent to its upper surface 24. The apex or narrow section 26'of the triangular tongue is integral with and connected to the bottom 28 of flange 14 on the plug. Thus, the upper surface 24 of the strip 16, the tongue 18, and the bottom of the plug lie in substantially the same horizontal plane.
Referring now to FIG. 1, there is seen a section of a backplane 30 having a plurality of apertures 32 formed therein. Plugs 10 are shown as being positioned in two of the apertures. The tool for inserting the plugs in the backplane apertures, generally indicated by reference numeral 34, comprises an elongated, cylindrical barrel 36 having a plunger 38 slidably mounted within the bore 40 within the barrel. A retaining cap 42 is threadably mounted on the rear portion of the barrel 36. A stem 44 on the plunger 38 extends outwardly through an opening 46 in the cap and terminates in a handle 48.
The bore of the barrel 36 terminates in a shoulder which is spaced from the forward end 52 of the barre]. A reduced diameter bore 54 extends from the bore 40 to such forward end. A transverse slot 55 extends from the bore 54 to one side of the barrel 36 as best seen in FIGS. 1 and 6. As seen in FIGS. 2 and 3, a transversely extending passageway 56 passes through the barrel body 36 and intersects the bottom of the bore 54 near the rear of the bore but forward of the shoulder 50. The sidewalls of the passageway 56 are spaced apart a distance slightly greater than the width of .the teeth 20 on the carrier strip 16 which carries the plugs 10. The height of the slot 55 is sufficient to receive the plugs 10 carried by the strip 16. The strip of plugs is fed through the passageway 56 by an indexing wheel 58 which is rotatably mounted in a generally horizontally extending cavity 60 extending to the opposite sidewalls of the barrel 36. As best seen in FIG. 1, the wheel 58 projects from the sides of the barrel so that it can be turned by thumb and finger and held in position to align successive plugs 10 with the bore 54. The wheel 58 is rotatably mounted in the cavity 60 by means ofa cylindrical boss 62 which extends into a vertically extending cylindrical opening 64 in the lower wall of the barrel 36.
A longitudinally extending channel 66 of generally square cross-section is formed in the lower portion of the plunger 38. A pawl or detent bar 68 is slidably mounted in the forward portion of the channel 66 and is urged in a forward direction by means ofa coil spring 50 lying lengthwise in the channel. The forward portion of the pawl 68 is formed with a curved surface 70, as best seen in FIG. 7, which is engageable with concave recesses 72 formed about the outer periphery of the indexing wheel 58. The spring biased pawl serves to releasably hold the wheel in a position wherein the respective plugs 10 on the strip 16 are in alignment with the bore 54. Upstanding pins 74 extend from the upper surface 76 of the wheel 58 intermediate the recesses 72. These pins are ofa height which allows them to engage the sides of the teeth 20 on the carrier strip 16 so that upon rotation of the indexing wheel the strip will be fed through the transverse passageway 56.
The plunger 38 is provided at its forward end with a small cylindrical section 80 of a diameter less than that of the bore 54 in the forward end of the barrel. The forward section 80 of the plunger is dimensioned so that its lower surface 82 is spaced above the bottom of the bore 54 a distance slightly greater than the thickness of the tongue 18 on the carrier strip 16 so that the forward section of the plunger may slide over the upper surface of the tongue 18. A guide pin 84 is formed on the forward section 80 of the plunger. This pin has a diameter slightly less than the diameter of the bore 86 in the plug 10 and is coaxial therewith when the plug is positioned within the bore 54 of the barrel. In the use of the tool 34 in the method of the present invention, the tool is aligned with an aperture 32 in the backplane 30. The strip 16 carrying the plugs 10 is fed through the passageway 56 of the barrel by rotating the indexing wheel 58. When a plug is brought into alignment with the bore 54 as seen in FIG. 2, the plunger 38 is moved forwardly to insert the pin 84 within the plug bore 86. After the pin is forwardly inserted in such bore, the shoulder 86 formed between the pin and the forward section 80 of the barrel engages the rear 90 of the plug. Further forward movement of the plunger will cause the tongue 18 to tear at its connection to the plug at the apex 26 and the plug will be moved out of the bore 54 and driven into the aperture 32 in the backplane, as seen in FIG. 3. Thereafter, the plunger is retracted and the indexing wheel rotated to bring successive plugs into alignment with the bore 54 of the barrel for further plugging operations.
Reference is now made to FIGS. 10 and 11 which illustrate an electrical contact element which is mounted in a metal bushing 102. The contact is passed through the plug 10 in the backplane 30 until the bushing engages the plug. The bushing is then forced in a rightward direction as indicated by the arrow in FIG. 10 to push the plug 10 out of the backplane aperture 32 so that the bushing replaces the plug as seen in FIG. 11. If desired, the bushing 102 can be eliminated and the contact 100, if formed with a sufficiently wide body portion, may be press-fitted directly in the aperture 32. Thus, in a single step, the plug 10 is removed from the backplane aperture 32 and an electrical contact is positioned in the backplane in electrical engagement therewith. Alternatively, the plug 10 may be removed from the backplane in one step and the contact mounted in the backplane in a second subsequent step. In either case, by the method of the present invention, wherein the aperture surfaces 32 are masked during the anodizing procedure, the time-consuming and expensive procedure of reaming plated backplane apertures is eliminated.
Although we have herein shown and described our invention in what we have conceived to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of our invention which is not to be limited to the details disclosed herein but it to be accorded the full scope of the claims so as to embrace any and all equivalent structures and methods.
What is claimed is: 1. In the method of manufacturing a backplane, the steps comprising:
forming a plurality of apertures in the backplane; inserting plugs in selected apertures in said backplane to mask the surfaces of said apertures;
forming a nonconductive coating on said backplane while said plugs are positioned in said selected apertures;
thereafter removing at least some of said plugs from their respective apertures; and
mounting conductive elements in at least some of said aper-tures from which said plugs are removed.
2. A method as set forth in claim 1 wherein: said backplane is formed of aluminum; and said coating is formed by anodizing said backplane.
3. A method as set forth in claim 1 wherein: said plugs are connected to a common carrier strip prior to insertion into said selected apertures; and
said plugs are torn from said strip upon insertion into said apertures.
4. A method as set forth in claim 1 wherein:
said plugs are removed from said apertures by mounting said conductive elements in said apertures.
5. In the method of manufacturing a backplane, the
steps comprising: 7
3 ,797 1 07 i 5 6 forming an aperture in an aluminum backplane; tioned in said aperture; and inserting a plug in said aperture to mask the surfaces inserting a conductive element into said aperture to of the aperture; remove said plug therefrom. anodizing said backplane while said plug is posi-
Claims (5)
1. In the method of manufacturing a backplane, the steps comprising: forming a plurality of apertures in the backplane; inserting plugs in selected apertures in said backplane to mask the surfaces of said apertures; forming a nonconductive coating on said backplane while said plugs are positioned in said selected apertures; thereafter removing at least some of said plugs from their respective apertures; and mounting conductive elements in at least some of said aper-tures from which said plugs are removed.
2. A method as set forth in claim 1 wherein: said backplane is formed of aluminum; and said coating is formed by anodizing said backplane.
3. A method as set forth in claim 1 wherein: said plugs are connected to a common carrier strip prior to insertion into said selected apertures; and said plugs are torn from said strip upon insertion into said apertures.
4. A method as set forth in claim 1 wherein: said plugs are removed from said apertures by mounting said conductive elements in said apertures.
5. In the method of manufacturing a backplane, the steps comprising: forming an aperture in an aluminum backplane; inserting a plug in said aperture to mask the surfaces of the aperture; anodizing said backplane while said plug is positioned in said aperture; and inserting a conductive element into said aperture to remove said plug therefrom.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31281272A | 1972-12-07 | 1972-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3797107A true US3797107A (en) | 1974-03-19 |
Family
ID=23213116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00312812A Expired - Lifetime US3797107A (en) | 1972-12-07 | 1972-12-07 | Backplane manufacture |
Country Status (2)
Country | Link |
---|---|
US (1) | US3797107A (en) |
GB (1) | GB1409620A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4290178A (en) * | 1978-05-10 | 1981-09-22 | International Telephone And Telegraph Corporation | Assembly apparatus for electrical connectors |
US6098442A (en) * | 1997-10-20 | 2000-08-08 | Emhart Inc. | Fastening device and method and apparatus for supplying fastening elements thereto |
US20020001438A1 (en) * | 2000-04-19 | 2002-01-03 | Andreas Schuhbaeck | Arrangement of several ferrules for optical waveguides and process of manufacturing a belt of plastic ferrules |
CN104001850A (en) * | 2013-11-29 | 2014-08-27 | 昆山洛博格机械技术咨询有限公司 | Riveting device with function of quick reloading |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3007357C2 (en) * | 1980-02-25 | 1984-02-23 | Mannesmann AG, 4000 Düsseldorf | Tool for pressing plugs into corresponding workpiece openings, especially for closing pipe ends |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3106770A (en) * | 1959-12-02 | 1963-10-15 | Otra Ringlaufer G M B H | Prortable apparatus for applying travelers to the ring of a spinning or twisting fram |
US3370351A (en) * | 1964-11-02 | 1968-02-27 | Gen Dynamics Corp | Method of manufacturing electrical connectors |
US3571923A (en) * | 1968-12-30 | 1971-03-23 | North American Rockwell | Method of making redundant circuit board interconnections |
-
1972
- 1972-12-07 US US00312812A patent/US3797107A/en not_active Expired - Lifetime
-
1973
- 1973-10-25 GB GB4967973A patent/GB1409620A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3106770A (en) * | 1959-12-02 | 1963-10-15 | Otra Ringlaufer G M B H | Prortable apparatus for applying travelers to the ring of a spinning or twisting fram |
US3370351A (en) * | 1964-11-02 | 1968-02-27 | Gen Dynamics Corp | Method of manufacturing electrical connectors |
US3571923A (en) * | 1968-12-30 | 1971-03-23 | North American Rockwell | Method of making redundant circuit board interconnections |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4290178A (en) * | 1978-05-10 | 1981-09-22 | International Telephone And Telegraph Corporation | Assembly apparatus for electrical connectors |
US6098442A (en) * | 1997-10-20 | 2000-08-08 | Emhart Inc. | Fastening device and method and apparatus for supplying fastening elements thereto |
US20020001438A1 (en) * | 2000-04-19 | 2002-01-03 | Andreas Schuhbaeck | Arrangement of several ferrules for optical waveguides and process of manufacturing a belt of plastic ferrules |
EP1148365A3 (en) * | 2000-04-19 | 2002-02-13 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement of several light guide ferrules and method of production of a band carrying plastic ferrules |
US6877907B2 (en) | 2000-04-19 | 2005-04-12 | Bayerische Motoren Werke Ag | Arrangement of several ferrules for optical waveguides and process of manufacturing a belt of plastic ferrules |
CN104001850A (en) * | 2013-11-29 | 2014-08-27 | 昆山洛博格机械技术咨询有限公司 | Riveting device with function of quick reloading |
Also Published As
Publication number | Publication date |
---|---|
GB1409620A (en) | 1975-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3845535A (en) | Apparatus for connecting conductors to contact terminals in an electrical connector | |
US3659243A (en) | Electrical connectors | |
US5265328A (en) | Circuit module extraction tool and method | |
EP0651468B1 (en) | Circuit board and edge-mountable connector therefor, and method of preparing a circuit board edge | |
US6409543B1 (en) | Connector molding method and shielded waferized connector made therefrom | |
US5055068A (en) | Stamped and formed coaxial connectors having insert-molded center conductors | |
US4337574A (en) | Method of manufacturing electrical connector receptacles | |
US4572604A (en) | Printed circuit board finger connector | |
EP0045153A1 (en) | Terminal for mounting on a circuit board | |
US4292736A (en) | Method for making jack type receptacles | |
EP0012532A1 (en) | Electrical connector receptacle and method of making a strip of electrical connector receptacles | |
US3916516A (en) | Electrical connector and method for making an electrical circuit | |
EP0452061A1 (en) | Multiple-conductor electrical connector and stamped and formed contacts for use therewith | |
IL31521A (en) | Connector and method for attaching same to printed circuit board | |
US4676576A (en) | Communications connector | |
US5129832A (en) | Surface mount electrical connector and method of making the same | |
WO1983001213A1 (en) | Method and apparatus for making fork contacts | |
DE102015116451A1 (en) | Connectors | |
US3553836A (en) | Method and apparatus for terminating cable | |
US3797107A (en) | Backplane manufacture | |
US4992055A (en) | Electrical jacks and headers | |
US4324451A (en) | Card edge connector with pull through bellows contact and lay-over insulator | |
US5387112A (en) | Versatile terminal members for ribbon cable connectors | |
DE112012000997T5 (en) | Circuit body and connector assembly | |
DE10143851A1 (en) | Plug with contact pin |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ITT CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606 Effective date: 19831122 |