WO1993017806A1 - Shaft clutch mechanism and its production - Google Patents
Shaft clutch mechanism and its production Download PDFInfo
- Publication number
- WO1993017806A1 WO1993017806A1 PCT/US1993/002321 US9302321W WO9317806A1 WO 1993017806 A1 WO1993017806 A1 WO 1993017806A1 US 9302321 W US9302321 W US 9302321W WO 9317806 A1 WO9317806 A1 WO 9317806A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- upper body
- shaft clutch
- blank
- clutch mechanism
- fingers
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 81
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 239000000109 continuous material Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- -1 welding Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/025—Locking means for translational movement
- F16M2200/027—Locking means for translational movement by friction
-
- 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
- Y10T29/49609—Spring making
-
- 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
- Y10T29/49826—Assembling or joining
- Y10T29/4984—Retaining clearance for motion between assembled parts
Definitions
- the present invention relates to a shaft clutch mechanism, and method and apparatus for its production. More particularly, both the mechanism, and method and apparatus for its production relate to a clutch which allows relative movement between two elements in a telescoping body where one element is nested inside the second element and adjustment to relative position is required, and yet the mechanism holds the two elements stationary relative to each other after the desired adjustment is made.
- a support member comprised of an outer tube, and an inner tube which is slidably mounted within the outer tube.
- This support member is vertically oriented, with the music holder mounted on top of the upper end of the inner tube.
- the weight of the music holder and any music placed on the music holder presents a problem, given the telescopic nature of the music stand. It is important that the height of the music stand be easily adjustable, but it is equally important that the adjustment be retained and that the inner tube of the music stand remain stationary relative to the outer tube of the music stand when adjustments are completed and the stand is in use.
- Another mechanism used to adjust music stands is one which adds a threaded collar to the outer tube and causes the tightening of some portion of the outer tube upper end, or a contained gasket or "O" ring, against the inner tube body, thereby holding it in place once the adjustment is made.
- This mechanism and its production adds costs to the music stand, and is less convenient to use when adjusting the music stand, requiring the loosening and tightening of the threaded cap. Also, if the mechanism uses gaskets they can be worn and have to be replaced.
- a shaft clutch mechanism As illustrated by the above discussion, there are a number of desirable features for a shaft clutch mechanism and method for its production. It would be desirable for a shaft clutch mechanism to allow easy adjustment of a telescopic body utilizing nested elements, and at the same time allowing the adjustment to be retained once achieved. It also would be desirable for a shaft clutch mechanism to have a plurality of fingers arrayed about an inner nested element of a telescopic body. It further would be desirable to have a shaft clutch mechamsm which had a plurality of fingers arrayed about an inner nested body with the shaft clutch mechamsm being constructed from a single piece of material. Additionally, it would be desirable to have a shaft clutch mechanism produced by a fully or partially automated method and apparatus.
- the present inventions achieves these and other objectives which will become apparent from the description that follows by providing a shaft clutch mechanism which has a plurality of bowed fingers arrayed about an inner nested element of a telescoping body with the shaft clutch mechanism being produced from a single piece of material.
- the shaft clutch mechamsm has an upper body with a polygonal cross section. Attached to the upper body and arrayed about it are a plurality of fingers. The fingers are bowed outward so that when the shaft clutch mechanism is mounted on the inner nested element, the fingers will contact the outer element.
- a shaft clutch mechanism identical to the one discussed above is mounted to one end of an inner nested element of a telescoping body with a retaining ring holding it in place about the end of the nested element.
- the fit of the retaining; ring forces the. end ol the IIIIICI nested element to lake the polygonal sha ol the shall clutch mechanism cross section.
- the present invention is a method for producing the shaft clutch mechanisms/ discussed above.
- the method includes the steps of creating a blank from a single piece of material with the fingers formed, bending the fingers, and then forming the polygonal cross section by bending the upper body.
- the method discussed above is performed with the additional steps of taking the blank and bending the upper body along its width at each gap between the fingers.
- the bends are made one at a time with each fold being "over bent” to minimize spring back.
- apparatus for creating the shaft clutch mechanisms in accordance with the methods discussed above has a two stage press for forming and bending the blanks, and a bending device which takes the blanks and bends the upper bodies one gap at a time to create the polygonal cross section. The finished shaft clutch mechanism is then ejected.
- the bending device uses a rolling key and mandrel with a polygonal side to bend the body.
- a programmable controller is used to control the production of the shaft clutch mechanisms.
- FIG. 1 is a perspective view of a preferred embodiment constructed in accordance with the present invention.
- Fig. 2 is a perspective view of an alternative preferred embodiment constructed in accordance with the present invention.
- Fig. 3 is a side cross section view of the alternative preferred embodiment illustrated in Fig. 2, taken along lines 3-3.
- Fig. 4 is a side cross section view of the alternative preferred embodiment illustrated in Fig. 2, taken along lines 4-4.
- Fig. 5 is a perspective view of an alternative preferred embodiment constructed in accordance with the present invention.
- Fig. 6 is a side cross section view of the alternative preferred embodiment illustrated in Fig. 5, taken along lines 6-6.
- Fig. 7 is a partial perspective view of the operation of the alternative preferred embodiment illustrated in Fig. 5.
- Fig. 8 is a side cross section view of the alternative preferred embodiment 1 illustrated in Fig. 7, taken along lines 8-8.
- Fig. 9 is a side cross, section view of the alternative preferred embodiment illustrated in Fig. 7, taken along lines 9-9.
- Fig. 10 is an exploded partial view of an alternative preferred embodiment constructed in accordance with the present invention.
- Fig. 11 is a partial view of an alternative preferred embodiment constructed in accordance with the present invention.
- Fig. 12 is a perspective view of an alternative preferred embodiment constructed in accordance with the present invention.
- Fig. 13 is a partial perspective view of an alternative preferred embodiment constructed in accordance with the present invention with cut away to illustrate the installation of the invention.
- the shaft clutch mechanism has upper body 32 and a plurality of fingers 34 attached to the upper body.
- the upper body is bent into a polygonal shape with a finger first end 36 attached to each flat section 38 of the upper body.
- the fingers are bowed outward along their length with the finger second ends 40 returning inward to lay in substantially the same plane as the corresponding upper body section.
- the shaft clutch mechanism 30 is mounted proximate a first end 42 of an inner tube 44 with a retaining ring 46.
- the retaining ring fits around the mechanism upper body 32 and the inner tube first end. As best illustrated in Fig. 11, the retaining ring fits sufficiently tight about the mechamsm upper body and the inner tube first end that inner tube first end is deformed from a substantially circular shape to the polygonal shape of the mechanism upper body.
- a variable portion of the inner tube 44 and the inner tube first end 42, together with the attached shaft clutch mechanism 30, are located within an outer tube 48.
- a seal 50 at the first end 52 of the outer tube fits closely, but slidably around the inner tube.
- the mechanism fingers 34 are partially compressed by outer tube, as shown in Fig. 13, while retaining a slidable fit. The friction from the fingers pushing outward against the outer tube is sufficient to hold the inner tube in place relative to the outer tube while allowing easy movement of the inner tube relative to the outer tube.
- a blank 54 which is substantially flat along its width and curved for at least a portion of its length, as illustrated in Fig. 1, must be created.
- a continuous strip of material 56 is fed into a two-stage press 58.
- the two-stage press has an upper portion 62 which moves up and down, and a lower portion 64 which is stationary. The upper portion is in its "up" position, the continuous strip of material is advanced through the two- stage press.
- the first stage of the two-stage press is a punch 66. This punch, when lowered on the continuous strip which cuts out or punches a plurality of elongated slots along the length of the strip of the continuous material. These slots are substantially aligned and of equal length. These slots will form the gaps 68 between the fingers on the finished shaft clutch mechanism.
- the second stage of the press is a curved press 70.
- the curved press serves two functions. When the upper portion 62 of the two-stage press 58 is lowered, the curved press cuts the blank from the continuous strip at one end of the plurality of elongated slots to form the blanks. In addition, the curved press bends the blank along its length, as illustrated in Fig. 4, to form the curved portion 72 of the blank. When the upper portion of the two-stage press is raised, the curved cut blank is pushed along a slide 74 by an ejector 76. When the blank reaches the end of the slide, it is allowed to fall in a collection box * (not shown).
- the upper portion 62 of the two-stage press 58 lifts up. While the upper portion is in its up position, the finished blank 54 is pushed along the slide 74 by the ejector 76. The continuous strip is then advanced so that the portion of the continuous strip with elongated slots cut into it is advanced to the curved press, while a completely new portion of the continuous strip is advanced into the punch portion of the two-stage press.
- the finished blanks 54 are placed into the feeding mechanism 80.
- the blanks can be fit automatically or stacked manually.
- the feeding mechamsm has a forward wall 82 and a rearward wall 84. These walls are vertically oriented and substantially aligned.
- the rearward wall contains a channel 86 with a bottom 88 and sides 90.
- the distance between the forward wall and the channel bottom is substantially equal to the length of the finished blank.
- the distance between the channel sides is substantially equal to the width of the fjnished blank.
- finished blanks are stacked in the feeding mechanism with the upper body 32 located in the rearward wall channel and the fingers 34 oriented towards the forward wall 82 located
- a compression slot 92 is located in the lower portion of the forward wall 82. The slot passes completely through the forward wall. Mounted outside the forward wall is a compression fork 94 which can pass through the compression slot into the feeding mechamsm. A motive cylinder 96 powers the compression port, which moves backwards and forwards. Located in the rearward wall 84 is a release slot 98. Mounted outside the rearward wall is a block gate 100 and a release fork 102. Attached to the block gate is a block gate motive cylinder 104. Attached to the release fork is release fork motive cylinder 106. As with the compression fork, the motive cylinders for the block gate and the release fork move them in and out through the release slot.
- the feeding mechanism 80 supplies one blank 54 at a time.
- the lowest blank in the stack in the feeding mechanism as shown in Fig. 6 rests upon an internal projection 108.
- the block gate 100 is moved forward to close the release slot 98 proximate the upper body 32 of the blank.
- the compression fork 94 is moved forward so that its fingers 95 press against the fingers 34 of the blank. This causes the blank to bow in its curved section so that it no longer rests upon the internal projection.
- the block gate is then moved backwards to allow the upper body to slide into the release gate. This results in the release of the blank fingers from the compression fork, which allows that end of the blank to drop down.
- the release fork With the block gate still pulled away from the release slot, the release fork is then moved forward to push the upper body out of the release slot allowing the entire blank to fall on the slide tray 110.
- the orientation of the compression fork, the release fork, and the block gate are dictated by the size and the amount of curvature in the blank. They are also adjusted so that only blank is affected at a time.
- both the compression fork and the release fork are moved backwards, and the block gate is moved forward to once again block the release slot in anticipation of the next blank being run through the feeding mechamsm 80.
- a push pad 112 moves to push the blank sideways along the sliding tray.
- the blank slides through a space created at first between the sliding tray and a retaining block 114 located above the sliding tray.
- a mandrel 116 which extends out over the sliding tray.
- This mandrel has a flat side 118 and a polygonal side with multiple flat sections 122.
- the push pad advances the blank until it reaches a stop 124, at which time the push pad motive cylinder 113 relaxes the push pad pressure against the blank.
- a rolling key 126 which projects outward substantially under the mandrel.
- the location of the blank relative to the mandrel, sliding tray, and rolling key is best illustrated in Fig. 8.
- the rolling key rotates upward, folding and permanently creasing the upper body between the flat upper surface 127 of the rolling key and one of the flat sections 122 of the polygonal side of the mandrel 116, as shown in Fig. 9.
- the rolling key is returned to its resting position, the push pad motive cylinder 113 is energized, pushing the push pad against the blank and advancing it until the first crease strikes the stop 124.
- the push pad motive cylinder relaxes the push pad so that there is no pressure against the blank, the rolling rotates upward, folding the blank again and creating a second crease in the blank. This process is continued until a closed polygon as shown in Fig. 10 is created.
- a push ejector 128 is energized, which pushes the finished shaft clutch mechanism off of the mandrel.
- the push pad triggers a reset switch (not shown) which causes the push pad motive cylinder to retract the push pad and begins the drop sequence from the feeding mechanism 80 to allow the next blank to be dropped from the stack.
- the forming mechamsm is adjusted so that when the blank 54 strikes the- stop 124, the crease will occur at the gap 68 between the first two adjacent fingers 34 of the blank. Similarly, as the blank is advanced, the stop causes each crease to occur in the upper body 32 at a place corresponding to a gap between two adjacent fingers.
- One reason for relaxing the push pad is to allow more accurate folding of the blank.
- the rolling key and mandrel are constructed so that as each crease is formed the upper body is "over bent". In other words, the angle created during the bending process is greater than necessary to compensate for the fact that metal will spring back after being bent. Over bending the upper body compensates for the spring back and allows the desired polygonal shape to be achieved.
- the angle that the rolling key rotates through is adjustable so that the desired bending can be accomplished.
- a retaining ring 46 is placed around the upper body 32 which is now in the closed polygonal shape.
- the first end 42 of the inner tube 44 is placed between the fingers 34 of the shaft clutch mechanism and pushed until it abuts against the upper body. At this point, the inner tube first end will not fit inside the shaft clutch mechanism upper body.
- the shaft clutch mechanism and inner tube are placed in a shaft press 130.
- the retaining ring and the contained upper body are placed on top of a lower die 132, and the inner tube is pressed into the positioning blocks 134, the upper ram 136 is then energized, pressing down on the inner tube and driving the inner tube first end into the shaft clutch mechanism upper body and retaining ring.
- the inner tube first end into the upper body actually deforms the inner tube first end to emulate the polygonal shape of the shaft clutch mechanism upper body. This ensures that the shaft clutch mechanism will not rotate relative to the inner tube without the use of any extraneous attachments or fixatives, such as welding, adhesives, bolts, rivets, etc.
- the shaft press in this embodiment uses trigger switches 138 to automatically energize the upper ram when the shaft clutch mechanism and the inner tube are in the proper position.
- Pneumatic power is used to energize and drive the various motive cylinders of the bending device, as well as powering the shaft press. While success has been achieved using pneumatic power, other power sources such as hydraulic power, or replacing the motive cylinders with electric motors, can also be quite effective.
- Control of the bending device as well as other machines in the production of the shaft clutch mechanism can be achieved in a number of ways ⁇ With the embodiments discussed above, success has been achieved using programmable controllers, such as a Westinghouse PCIOO to control the two stage press and an Omron C20K to control the bending device. It is believed that other automatic controllers are equally useful in these applications. Use of the programmable controller contained in the control box 140 allows the operation necessary to produce the shaft clutch mechanism to be carried out on a timed, sequenced basis. The increased level of automation vastly increases productivity, and at the same time provides a consistently higher quality product.
- This invention would be useful in any situation where it is desirable to have a simple, effective way of adjusting telescoping bodies with nested elements, and further to have an automated method and apparatus for producing the simple effective adjustment mechanism.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU38075/93A AU680409B2 (en) | 1992-03-12 | 1993-03-12 | Shaft clutch mechanism and its production |
DE69319102T DE69319102D1 (en) | 1992-03-12 | 1993-03-12 | SHAFT COUPLING DEVICE AND THEIR PRODUCTION |
EP93907489A EP0630299B1 (en) | 1992-03-12 | 1993-03-12 | Shaft clutch mechanism and its production |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/850,662 US5375445A (en) | 1992-03-12 | 1992-03-12 | Apparatus for producing a shaft clutch mechanism |
US07/850,662 | 1992-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993017806A1 true WO1993017806A1 (en) | 1993-09-16 |
Family
ID=25308782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1993/002321 WO1993017806A1 (en) | 1992-03-12 | 1993-03-12 | Shaft clutch mechanism and its production |
Country Status (8)
Country | Link |
---|---|
US (2) | US5375445A (en) |
EP (1) | EP0630299B1 (en) |
AT (1) | ATE167092T1 (en) |
AU (1) | AU680409B2 (en) |
CA (1) | CA2131897C (en) |
DE (1) | DE69319102D1 (en) |
MX (1) | MX9301391A (en) |
WO (1) | WO1993017806A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6145057A (en) * | 1997-04-14 | 2000-11-07 | International Business Machines Corporation | Precise method and system for selecting an alternative cache entry for replacement in response to a conflict between cache operation requests |
US6049849A (en) * | 1997-04-14 | 2000-04-11 | International Business Machines Corporation | Imprecise method and system for selecting an alternative cache entry for replacement in response to a conflict between cache operation requests |
US20020020243A1 (en) * | 2000-05-22 | 2002-02-21 | Ziegert John C. | Rotary shaft vibration damping |
US7359129B2 (en) * | 2006-09-20 | 2008-04-15 | Cheng Uei Precision Industry Co., Ltd. | Clutched jig |
US10493515B2 (en) * | 2015-05-08 | 2019-12-03 | Innovex Downhole Solutions, Inc. | Devices and methods for forming bow springs of one-piece centralizers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695800A (en) * | 1951-01-26 | 1954-11-30 | Dartmouth Skis Inc | Adjustable telescoping tubular structure |
DE2029896A1 (en) * | 1969-06-17 | 1970-12-23 | ||
FR2516615A1 (en) * | 1981-11-17 | 1983-05-20 | Jaeger | Coupling for two tubes - has two sets of curved blades with alternative, offset curvatures to aid assembly |
US4556163A (en) * | 1983-01-03 | 1985-12-03 | Lundman Philip L | Method for manufacturing a jack stand |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE345827C (en) * | ||||
DE65157C (en) * | A. KERSTEN in Eilenburg, Prov. Sachsen, Promenade 24/25 | Removal device for brick presses | ||
US2371138A (en) * | 1945-03-13 | Forming die | ||
US1382368A (en) * | 1920-05-06 | 1921-06-21 | Leroy M Lewis | Process of making fusible links |
US1526518A (en) * | 1921-10-27 | 1925-02-17 | Philip C Wentworth | Machine for and method of forming ring travelers |
DE545295C (en) * | 1930-10-09 | 1932-02-27 | Seifert Geb | Extension tube, especially for tripod feet |
US2009496A (en) * | 1933-02-11 | 1935-07-30 | Leonard W Johnson | Method of making a valve guide cleaner |
US2004555A (en) * | 1933-09-02 | 1935-06-11 | Kleinmann Ernst | Method and apparatus for the manufacture of electrical contact plugs |
US2429863A (en) * | 1943-08-11 | 1947-10-28 | Breeze Corp | Engine starter |
US2408778A (en) * | 1943-12-30 | 1946-10-08 | Delamere Co Inc | Method of making combs from sheet stock |
US2762119A (en) * | 1953-04-22 | 1956-09-11 | John E Jackson | Method of making a bolt anchor shield |
US2968974A (en) * | 1958-09-08 | 1961-01-24 | Vernon M Everett | Method of making a lawn rake |
US3322996A (en) * | 1962-12-17 | 1967-05-30 | Varian Associates | Electron discharge devices and molybdenum slow wave structures, the molybdenum slow wave structures having grain alignment transverse to the electron path |
US3722053A (en) * | 1971-07-26 | 1973-03-27 | Dresser Ind | Method of making well pressure sealing cup reinforcing structure |
US3866471A (en) * | 1973-12-03 | 1975-02-18 | Kaller Die & Tool Company | Progressive die |
US3982457A (en) * | 1975-03-21 | 1976-09-28 | Berry Robert N | Notching machine |
DE2542239A1 (en) * | 1975-09-23 | 1977-03-31 | Ernst Zentner Kg Elektro Feinm | Sheet folder work setting stop - has stops movable on T-slotted rail and adjustable electro pneumatically |
US4083221A (en) * | 1976-07-29 | 1978-04-11 | Duffy Tool & Stamping, Inc. | Parts forming apparatus and method |
US4313331A (en) * | 1978-06-02 | 1982-02-02 | Nycoil Company | Method of manufacturing a metallic retaining ring for a tube |
GB2119299A (en) * | 1982-03-04 | 1983-11-16 | Pa Management Consult | Making cutting tools |
GB8320764D0 (en) * | 1983-08-02 | 1983-09-01 | Rhodes Joseph Ltd | Bending machines |
US4542852A (en) * | 1984-03-05 | 1985-09-24 | The Singer Company | Vibration damping device for thermostatic expansion valves |
US4724673A (en) * | 1986-06-30 | 1988-02-16 | Vickers, Incorporated | Power transmission |
-
1992
- 1992-03-12 US US07/850,662 patent/US5375445A/en not_active Expired - Lifetime
-
1993
- 1993-03-12 AU AU38075/93A patent/AU680409B2/en not_active Expired
- 1993-03-12 DE DE69319102T patent/DE69319102D1/en not_active Expired - Lifetime
- 1993-03-12 EP EP93907489A patent/EP0630299B1/en not_active Expired - Lifetime
- 1993-03-12 AT AT93907489T patent/ATE167092T1/en not_active IP Right Cessation
- 1993-03-12 MX MX9301391A patent/MX9301391A/en unknown
- 1993-03-12 WO PCT/US1993/002321 patent/WO1993017806A1/en active IP Right Grant
- 1993-03-12 CA CA002131897A patent/CA2131897C/en not_active Expired - Lifetime
-
1994
- 1994-09-22 US US08/310,860 patent/US5553382A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695800A (en) * | 1951-01-26 | 1954-11-30 | Dartmouth Skis Inc | Adjustable telescoping tubular structure |
DE2029896A1 (en) * | 1969-06-17 | 1970-12-23 | ||
FR2516615A1 (en) * | 1981-11-17 | 1983-05-20 | Jaeger | Coupling for two tubes - has two sets of curved blades with alternative, offset curvatures to aid assembly |
US4556163A (en) * | 1983-01-03 | 1985-12-03 | Lundman Philip L | Method for manufacturing a jack stand |
Also Published As
Publication number | Publication date |
---|---|
EP0630299B1 (en) | 1998-06-10 |
EP0630299A1 (en) | 1994-12-28 |
AU3807593A (en) | 1993-10-05 |
MX9301391A (en) | 1994-08-31 |
CA2131897A1 (en) | 1993-09-16 |
CA2131897C (en) | 1998-10-13 |
DE69319102D1 (en) | 1998-07-16 |
US5375445A (en) | 1994-12-27 |
AU680409B2 (en) | 1997-07-31 |
ATE167092T1 (en) | 1998-06-15 |
US5553382A (en) | 1996-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5222931A (en) | Intermitten motion bayonet handle attachment apparatus and process | |
CN110524948B (en) | Corrugated carton processing technology convenient to arrange neatly | |
DE8205933U1 (en) | DEVICE FOR PRODUCING CAN ENDS | |
US5375445A (en) | Apparatus for producing a shaft clutch mechanism | |
US3955337A (en) | Apparatus for manufacturing and wrapping labels | |
US4311476A (en) | Method and apparatus for forming a container for liquids | |
AU619499B2 (en) | An automatic bookbinding machine | |
US2325230A (en) | Notching and blank forming apparatus | |
US5123888A (en) | Pail box machinery | |
US4104013A (en) | Tampon ejector tube and apparatus | |
US4554814A (en) | Air transfer system and method for a shell press | |
CN108817250A (en) | The application method of press machine and press machine | |
SE449452B (en) | PROCEDURE AND DEVICE FOR PREPARING A METALLIC DRAWING AND FOR CONNECTING THE CONNECTION OF ITS WITH A REMOVABLE BOTTLE CIRCUIT | |
CN208993074U (en) | The all-in-one machine of wrapped bearing bush forming and shaping | |
US3762206A (en) | Apparatus for and method of manufacturing cores for ignition coils | |
US1360243A (en) | Metallic bushing and similar cylindrical body | |
CN116274770A (en) | Wave spring former | |
DE80128C (en) | ||
US576121A (en) | Can-making machine | |
DE2155387C3 (en) | Device for the production of lamellar cores for ignition coils of spark ignition devices | |
US1246455A (en) | Staple making and setting machine. | |
DE96946C (en) | ||
FI60161C (en) | APPARAT FOER TILLVERKNING AV ASKAR AV KARTONGRULLMATERIAL | |
US9906A (en) | Machinery foe | |
US390315A (en) | shipley |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA JP |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2131897 Country of ref document: CA Ref document number: 1993907489 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1993907489 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1993907489 Country of ref document: EP |