US20020162379A1 - Swage dies for swage-ring clamps - Google Patents
Swage dies for swage-ring clamps Download PDFInfo
- Publication number
- US20020162379A1 US20020162379A1 US09/846,661 US84666101A US2002162379A1 US 20020162379 A1 US20020162379 A1 US 20020162379A1 US 84666101 A US84666101 A US 84666101A US 2002162379 A1 US2002162379 A1 US 2002162379A1
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- United States
- Prior art keywords
- swage
- dies
- side surfaces
- swage dies
- overlapped
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- 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.)
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Classifications
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- 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
- Y10T29/5367—Coupling to conduit
Definitions
- This invention relates to swage apparatus for swaging a clamp ring against seal material to secure the seal material to a substrate.
- Current apparatus for compressing seal material against an underlying substrate for producing a leak proof path therebetween includes an apparatus having a plurality of pie-shaped swage segments that are operated by hydraulic or mechanical force to move the segments from a radially outwardly released position to a radially inwardly located force application position in which arcuate segments on each of the swage elements are mechanically forced against the outer circumference of a clamp ring for swaging the clamp ring into a compressed relationship with the seal material for securing it to a substrate such as a shaft.
- the present invention solves the problem of such material clamp or seal material fold up by configuring the swage dies with a side edge configuration that will assure that the application of compression forces against each of the swage dies will be applied uniformly around the full circumference of a clamp ring so that it will be fully plastically deformed in all sections of its inner diameter so as to prevent the problem of clamp ring fold-up or under compression of the seal material at folds between the clamp ring and the underlying substrate.
- a feature of the invention is to provide apparatus for swaging clamps to secure seal material to an underlying substrate by uniform deformation of a ring clamp wherein the apparatus includes a plurality of swage dies arranged circumferentially of a clamp ring and having side surfaces thereon and the invention characterized by each of the plurality of swage dies having variable width side surfaces thereon that are overlapped for producing a uniform circumferential swaging force on the clamp ring during compression thereof against a seal material.
- a further feature of the present invention is to provide such apparatus wherein the swage dies are even numbered.
- a further feature is to provide such swage dies having truncated tapered face portions including side edge surfaces increasing in width toward the radially inner end of each of the swage dies; and wherein adjacent ones of the swage dies are alternately arranged to cause the overlapped surfaces to lie in substantially the same plane while providing an unrestricted radially inwardly and outwardly directed movement of each of the swage dies without application of compressive forces therebetween.
- a further feature of the present invention is to provide apparatus having such swage dies wherein the swage dies have opposite faces thereon and wherein each of the opposite faces have one of the variable width side surfaces thereon and wherein the swage dies are even numbered.
- a still further feature of the invention is to provide such apparatus wherein each of the dies have opposite faces thereon and each of the opposite faces have one of the variable width side surfaces thereon and swage dies are an odd number.
- Still another object of the present invention is to provide such apparatus wherein each of the swage dies are pie-shaped and have overlapping side surfaces formed either partly along or fully along the full radial edge of each of the swage dies; and wherein the side surfaces of adjacent swage dies are overlapped to provide for uniform application of compression forces on the clamp ring without applying compressive forces between adjacent ones of the overlapped surfaces of each of the swage dies.
- a still further feature of the present invention is to provide apparatus of the type set forth in the proceeding type wherein each of the overlapped side surfaces form a lap joint.
- Still another feature is to provide such apparatus wherein the overlapped surfaces are substantially V-shaped.
- Another feature of the present invention is to provide such apparatus wherein the overlapped surfaces are formed as a tongue-in-groove joint.
- FIG. 1 is a diagrammatic view of the prior art clamp ring swage apparatus
- FIG. 2 is a fragmentary perspective view of the apparatus in FIG. 1;
- FIG. 3 is a diagrammatic view of a first embodiment of the present invention showing an even numbered swage die arrangement having the overlapped side edge configuration of the present invention
- FIG. 4 is an elevational view of one swage element in the apparatus of FIG. 3;
- FIG. 5 is a fragmentary elevational view looking in the direction of the arrows 5 - 5 along the circumference of the apparatus in FIG. 3;
- FIG. 6 is a view like FIG. 4 of alternate embodiment of the invention.
- FIG. 7 is a view like FIG. 5 with the alternate embodiment of the invention shown in FIG. 6;
- FIG. 8 is a diagrammatic view of another embodiment of the present invention.
- FIGS. 9 through 11 are fragmentary sectional views of three different embodiments of a side edge profile for use in the embodiment of the apparatus shown in FIG. 8.
- FIG. 1 shows a prior art swage apparatus 10 having 6 pie-shaped segments 12 that are operated radially inwardly and outwardly by suitable hydraulic or mechanical drivers shown by reference numeral 14 .
- Each of the pie-shaped segments 12 have side edges 16 , 18 that require some minimum clearance therebetween at a final swaging diameter which is diagrammatically shown in FIG. 1.
- a radially inwardly arcuate surface 20 on each of the swage elements 12 is positioned against the outer circumference 22 of a clamp ring 24 .
- the clamp ring 24 is compressed by the action of each of the swage dies 12 to be plastically deformed at its inside diameter 24 a .
- the inside diameter 24 a is thereby compressed against the outer surface 26 of a layer of seal material 28 for securing it in sealing engagement with an underlying substrate 30 .
- Such arrangements are found in a wide variety of seal applications, such as the seal between a CV joint boot and a halfshaft or prop shaft assembly; other examples of seal material held by a clamp ring against an underlying substrate include inflatable sleeves on load assist shock absorbers; seals on vehicular air springs; boot seals on transmission shift mechanism; seal elements connected between an outboard engine drive input and an output; and a wide variety of comparable seal arrangements where a clamp ring secures a resilient flexible seal element against an underlying substrate for producing a leak-proof joint therebetween.
- FIGS. 3 - 5 One embodiment of an apparatus 40 for swaging clamps in accordance with the present invention is shown in FIGS. 3 - 5 .
- a plurality of swage dies 40 a through 40 f are arranged circumferentially around a clamp ring 42 .
- the swage dies 40 a - 40 f are connected to suitable drivers 43 so as to apply a radially inwardly directed force on the ring 42 to cause its inside diameter to be plastically deformed so as to compress a resilient seal element 44 with respect to underlying substrate 45 .
- Each of the swage dies 40 a through 40 f include a curved inner surface 46 and a pair of radially inwardly converging side surfaces 48 , 50 that have a variable width from an apex 48 a to a point on the curved surface 46 and from an apex 50 a to the same curved surface 46 .
- Each of the side surfaces 48 , 50 are overlapped as shown in FIGS. 3 and 5. Between the side surfaces 48 and 50 is formed a truncated tapered face portion 52 that is bounded by the side surfaces 48 , 50 . As shown in FIG.
- the overlapping swage dies (six in number) are arranged so that the truncated tapered surface portions 52 thereon are faced in an opposite direction from die to die as they are arranged circumferentially around the clamp ring 42 .
- the overlapped side surfaces 48 , 50 enable each of the dies to be fully contacted with the outer circumference of the clamp ring 44 to cause the swaging forces to be concentrated there against without a side compression loading on the dies and without formation of ring or seal folds found in the prior art arrangement.
- this embodiment is configured so that the same number of dies will span a larger arc than in the prior art.
- the space between the dies is not a straight edge surface, and as a consequence, it is more difficult for the clamp material to fold up into the space between the dies in a manner that restrict the dies from fully closing.
- the configuration shown in FIGS. 3 - 5 also prevents a corresponding fold up of the seal material.
- each of the dies 60 that are illustrated therein have side surfaces 62 and 64 formed on opposite faces of the die.
- the dies are overlapped in a circumferential direction as shown in FIG. 7, and will provide a full clamp ring contact at curve surfaces 66 on each of the die elements so as to reduce or eliminate a raised-up or non swage section of the clamp between the tool segments in accordance with the present invention.
- FIGS. 8 - 9 A still further embodiment of the invention is shown in FIGS. 8 - 9 wherein a plurality of circumferentially located swage dies 70 are provided. Side surfaces 72 , 74 on dies 70 will overlap either along the full length or on a partial segment of the length of each of the dies 70 . As shown in FIG. 9, the side surfaces 72 , 74 are formed as lap-joints 76 . Each of swage dies 70 have a curve surface 78 thereon that fully contacts the outer circumference of a clamp ring 80 for compressing it and an underlying seal element 82 against a substrate 84 .
- FIG. 10 Another embodiment of the present invention is shown in FIG. 10, wherein the side surfaces 72 , 74 are formed as V grooves 72 a and V tips 74 a .
- the non-straight edge form of the V prevents the fold up problem of the prior art.
- FIG. 11 A still further embodiment of the invention is show in FIG. 11, wherein the side surfaces form a tongue-in-groove joint 86 with a non-straight edge that prevents fold up as described herein.
- the die edge surface configurations prevent clamp and/or seal fold up into a space between die segments since the die segments have side surfaces that are formed on a non-straight path.
- the resilience seal material can fold along a straight line
- the fold must occur along shapes that prevent such fold up.
- the overlapping segments are arranged when viewed around the circumference so that there will be no fold up because of the overlap therebetween.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
Description
- This invention relates to swage apparatus for swaging a clamp ring against seal material to secure the seal material to a substrate.
- Current apparatus for compressing seal material against an underlying substrate for producing a leak proof path therebetween, includes an apparatus having a plurality of pie-shaped swage segments that are operated by hydraulic or mechanical force to move the segments from a radially outwardly released position to a radially inwardly located force application position in which arcuate segments on each of the swage elements are mechanically forced against the outer circumference of a clamp ring for swaging the clamp ring into a compressed relationship with the seal material for securing it to a substrate such as a shaft.
- The problem with such prior art arrangements is that a minimum clearance is provided between the opposed edges of the segments to insure that the hydraulic or mechanical force for swaging acts to compress the clamp ring rather than compressing the swage dies together. Such clearance can result in a plurality of circumferentially located folds or flashes in the resilient material clamped against the substrate.
- The problem with such flash material is that it restricts the swage dies from fully closing to a desired dimension or force that will cause the clamp ring to be plastically deformed so as to reduce its inside diameter to compress the seal material between the clamp ring and the substrate. Such under swaging of a clamp ring can cause a fold up section of clamp and seal material to create a leakage path at the clamp ring.
- The present invention solves the problem of such material clamp or seal material fold up by configuring the swage dies with a side edge configuration that will assure that the application of compression forces against each of the swage dies will be applied uniformly around the full circumference of a clamp ring so that it will be fully plastically deformed in all sections of its inner diameter so as to prevent the problem of clamp ring fold-up or under compression of the seal material at folds between the clamp ring and the underlying substrate.
- A feature of the invention is to provide apparatus for swaging clamps to secure seal material to an underlying substrate by uniform deformation of a ring clamp wherein the apparatus includes a plurality of swage dies arranged circumferentially of a clamp ring and having side surfaces thereon and the invention characterized by each of the plurality of swage dies having variable width side surfaces thereon that are overlapped for producing a uniform circumferential swaging force on the clamp ring during compression thereof against a seal material.
- A further feature of the present invention is to provide such apparatus wherein the swage dies are even numbered.
- A further feature is to provide such swage dies having truncated tapered face portions including side edge surfaces increasing in width toward the radially inner end of each of the swage dies; and wherein adjacent ones of the swage dies are alternately arranged to cause the overlapped surfaces to lie in substantially the same plane while providing an unrestricted radially inwardly and outwardly directed movement of each of the swage dies without application of compressive forces therebetween.
- A further feature of the present invention is to provide apparatus having such swage dies wherein the swage dies have opposite faces thereon and wherein each of the opposite faces have one of the variable width side surfaces thereon and wherein the swage dies are even numbered.
- A still further feature of the invention is to provide such apparatus wherein each of the dies have opposite faces thereon and each of the opposite faces have one of the variable width side surfaces thereon and swage dies are an odd number.
- Still another object of the present invention is to provide such apparatus wherein each of the swage dies are pie-shaped and have overlapping side surfaces formed either partly along or fully along the full radial edge of each of the swage dies; and wherein the side surfaces of adjacent swage dies are overlapped to provide for uniform application of compression forces on the clamp ring without applying compressive forces between adjacent ones of the overlapped surfaces of each of the swage dies.
- A still further feature of the present invention is to provide apparatus of the type set forth in the proceeding type wherein each of the overlapped side surfaces form a lap joint.
- Still another feature is to provide such apparatus wherein the overlapped surfaces are substantially V-shaped.
- Another feature of the present invention is to provide such apparatus wherein the overlapped surfaces are formed as a tongue-in-groove joint.
- Other features of the invention will become apparent to those skilled in the art as a disclosure is made in the following detailed description of preferred embodiments of the invention as illustrated in accompanying sheets and drawings in which:
- FIG. 1 is a diagrammatic view of the prior art clamp ring swage apparatus;
- FIG. 2 is a fragmentary perspective view of the apparatus in FIG. 1;
- FIG. 3 is a diagrammatic view of a first embodiment of the present invention showing an even numbered swage die arrangement having the overlapped side edge configuration of the present invention;
- FIG. 4 is an elevational view of one swage element in the apparatus of FIG. 3;
- FIG. 5 is a fragmentary elevational view looking in the direction of the arrows5-5 along the circumference of the apparatus in FIG. 3;
- FIG. 6 is a view like FIG. 4 of alternate embodiment of the invention;
- FIG. 7 is a view like FIG. 5 with the alternate embodiment of the invention shown in FIG. 6;
- FIG. 8 is a diagrammatic view of another embodiment of the present invention; and
- FIGS. 9 through 11 are fragmentary sectional views of three different embodiments of a side edge profile for use in the embodiment of the apparatus shown in FIG. 8.
- FIG. 1 shows a prior
art swage apparatus 10 having 6 pie-shaped segments 12 that are operated radially inwardly and outwardly by suitable hydraulic or mechanical drivers shown byreference numeral 14. Each of the pie-shaped segments 12 haveside edges arcuate surface 20 on each of theswage elements 12 is positioned against theouter circumference 22 of aclamp ring 24. Theclamp ring 24 is compressed by the action of each of the swage dies 12 to be plastically deformed at its inside diameter 24 a. The inside diameter 24 a is thereby compressed against theouter surface 26 of a layer ofseal material 28 for securing it in sealing engagement with anunderlying substrate 30. - Such arrangements are found in a wide variety of seal applications, such as the seal between a CV joint boot and a halfshaft or prop shaft assembly; other examples of seal material held by a clamp ring against an underlying substrate include inflatable sleeves on load assist shock absorbers; seals on vehicular air springs; boot seals on transmission shift mechanism; seal elements connected between an outboard engine drive input and an output; and a wide variety of comparable seal arrangements where a clamp ring secures a resilient flexible seal element against an underlying substrate for producing a leak-proof joint therebetween.
- The problem with such arrangements is that when the pie-shaped segments are in the fully applied position shown in FIG. 2, a
minimum clearance space 32 between the segments at the final swaging diameter is provided to prevent excessive side compressive force action between each of the swage dies 12. However, in such arrangements there is a tendency for thecompressed clamp ring 24 to fold up into thespace 32 as shown at 34 to produce a slightly pushed-up section of the clamp as to result inadequate compression thereunder. The underlying seal material can also fold up as shown at 36. Such a fold can result in a leak path for fluids to escape across the joint, both inwardly and outwardly thereof Thefolds - One embodiment of an
apparatus 40 for swaging clamps in accordance with the present invention is shown in FIGS. 3-5. In this embodiment a plurality of swage dies 40a through 40f are arranged circumferentially around aclamp ring 42. The swage dies 40 a-40 f are connected tosuitable drivers 43 so as to apply a radially inwardly directed force on thering 42 to cause its inside diameter to be plastically deformed so as to compress aresilient seal element 44 with respect to underlyingsubstrate 45. - Each of the swage dies40 a through 40 f include a curved
inner surface 46 and a pair of radially inwardly convergingside surfaces curved surface 46 and from an apex 50 a to the samecurved surface 46. Each of theside surfaces side surfaces tapered face portion 52 that is bounded by theside surfaces tapered surface portions 52 thereon are faced in an opposite direction from die to die as they are arranged circumferentially around theclamp ring 42. By virtue of this arrangement the overlappedside surfaces clamp ring 44 to cause the swaging forces to be concentrated there against without a side compression loading on the dies and without formation of ring or seal folds found in the prior art arrangement. Specifically, this embodiment is configured so that the same number of dies will span a larger arc than in the prior art. Additionally, the space between the dies is not a straight edge surface, and as a consequence, it is more difficult for the clamp material to fold up into the space between the dies in a manner that restrict the dies from fully closing. Hence, the configuration shown in FIGS. 3-5 also prevents a corresponding fold up of the seal material. - In the embodiment of the invention shown in FIG. 6 and7, each of the
dies 60 that are illustrated therein haveside surfaces curve surfaces 66 on each of the die elements so as to reduce or eliminate a raised-up or non swage section of the clamp between the tool segments in accordance with the present invention. - A still further embodiment of the invention is shown in FIGS.8-9 wherein a plurality of circumferentially located
swage dies 70 are provided.Side surfaces dies 70 will overlap either along the full length or on a partial segment of the length of each of thedies 70. As shown in FIG. 9, theside surfaces joints 76. Each of swage dies 70 have acurve surface 78 thereon that fully contacts the outer circumference of aclamp ring 80 for compressing it and anunderlying seal element 82 against asubstrate 84. - Another embodiment of the present invention is shown in FIG. 10, wherein the
side surfaces - A still further embodiment of the invention is show in FIG. 11, wherein the side surfaces form a tongue-in-
groove joint 86 with a non-straight edge that prevents fold up as described herein. - In each of embodiments shown in FIG. 8-11, the die edge surface configurations prevent clamp and/or seal fold up into a space between die segments since the die segments have side surfaces that are formed on a non-straight path. Thus in contrast of the prior art where the resilience seal material can fold along a straight line, in all of the other embodiments of the invention the fold must occur along shapes that prevent such fold up. In the embodiments of FIGS. 3-5 and 6 and 7 the overlapping segments are arranged when viewed around the circumference so that there will be no fold up because of the overlap therebetween.
Claims (10)
Priority Applications (1)
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US09/846,661 US6484553B1 (en) | 2001-05-01 | 2001-05-01 | Swage dies for swage-ring clamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/846,661 US6484553B1 (en) | 2001-05-01 | 2001-05-01 | Swage dies for swage-ring clamps |
Publications (2)
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US20020162379A1 true US20020162379A1 (en) | 2002-11-07 |
US6484553B1 US6484553B1 (en) | 2002-11-26 |
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US09/846,661 Expired - Lifetime US6484553B1 (en) | 2001-05-01 | 2001-05-01 | Swage dies for swage-ring clamps |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110005294A1 (en) * | 2009-05-08 | 2011-01-13 | Betaswage Pty Ltd | Die Element |
CN110052544A (en) * | 2019-04-19 | 2019-07-26 | 陈特 | A kind of press fastening device for tubing connection |
Families Citing this family (12)
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US7143625B2 (en) * | 2004-04-16 | 2006-12-05 | Boston Scientific Scimed, Inc. | Stent crimper |
US8186452B1 (en) * | 2005-09-30 | 2012-05-29 | American Piledriving Equipment, Inc. | Clamping systems and methods for piledriving |
US20070271990A1 (en) * | 2006-05-26 | 2007-11-29 | Young Thomas M | Shutter-Type Crimper |
AU2007318899A1 (en) * | 2006-11-09 | 2008-05-15 | African Explosives Limited | Crimping of detonators |
US8763719B2 (en) | 2010-01-06 | 2014-07-01 | American Piledriving Equipment, Inc. | Pile driving systems and methods employing preloaded drop hammer |
US8434969B2 (en) | 2010-04-02 | 2013-05-07 | American Piledriving Equipment, Inc. | Internal pipe clamp |
DE102011052852A1 (en) | 2011-08-19 | 2013-02-21 | Gustav Klauke Gmbh | pressing device |
US9249551B1 (en) | 2012-11-30 | 2016-02-02 | American Piledriving Equipment, Inc. | Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles |
US9371624B2 (en) | 2013-07-05 | 2016-06-21 | American Piledriving Equipment, Inc. | Accessory connection systems and methods for use with helical piledriving systems |
US10273646B2 (en) | 2015-12-14 | 2019-04-30 | American Piledriving Equipment, Inc. | Guide systems and methods for diesel hammers |
US10538892B2 (en) | 2016-06-30 | 2020-01-21 | American Piledriving Equipment, Inc. | Hydraulic impact hammer systems and methods |
DE102020101236A1 (en) | 2020-01-20 | 2021-07-22 | Te Connectivity Germany Gmbh | Arrangement, tooling and method for making such an arrangement |
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GB567355A (en) * | 1943-09-14 | 1945-02-09 | Wellman Seaver Rolling Mill Co | Improvements in or relating to tube swaging machines |
GB780204A (en) * | 1954-11-25 | 1957-07-31 | Norton Co Ltd Sir James Farmer | Improvements in swaging dies |
FR1497569A (en) * | 1966-08-22 | 1967-10-13 | Centre Nat Rech Scient | Very high pressure generating devices |
DE1940854C3 (en) * | 1969-08-11 | 1975-10-30 | Novopress Gmbh Pressen Und Presswerkzeuge & Co Kg, 4000 Duesseldorf | Device for notching sleeves on cables, ropes or rods |
US3695087A (en) * | 1970-08-26 | 1972-10-03 | Arthur H Tuberman | Method and apparatus for pointing tubes |
NO130553C (en) * | 1973-01-25 | 1975-01-08 | Gunnar Vinje | |
SU893380A1 (en) * | 1980-01-10 | 1981-12-30 | Научно-Производственное Объединение По Технологии Машиностроения "Цниитмаш" | Apparatus for reducing works |
US4454657A (en) * | 1980-07-25 | 1984-06-19 | Japan Aviation Electronics Industry Limited | Aperture setting device |
SU1003988A1 (en) * | 1981-09-24 | 1983-03-15 | Южно-Уральский Ордена Трудового Красного Знамени Машиностроительный Завод | Tool for broach forging |
SE441484B (en) * | 1984-02-27 | 1985-10-07 | Pressmaster Tool Ab | KLEMVERKTYG |
DE19507347C1 (en) * | 1995-03-02 | 1996-09-12 | Rennsteig Werkzeuge Gmbh | Crimping pliers for wire end ferrules |
WO1998040178A1 (en) * | 1997-03-11 | 1998-09-17 | Gustav Klauke Gmbh | Pressing tool |
US5768935A (en) * | 1997-03-13 | 1998-06-23 | Owens; Carl H. | Blade crimping device |
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- 2001-05-01 US US09/846,661 patent/US6484553B1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110005294A1 (en) * | 2009-05-08 | 2011-01-13 | Betaswage Pty Ltd | Die Element |
US8220306B2 (en) * | 2009-05-08 | 2012-07-17 | Betaswage Pty Ltd | Die element |
CN110052544A (en) * | 2019-04-19 | 2019-07-26 | 陈特 | A kind of press fastening device for tubing connection |
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US6484553B1 (en) | 2002-11-26 |
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