US3871071A - Method of forming an electrical connection - Google Patents

Method of forming an electrical connection Download PDF

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Publication number
US3871071A
US3871071A US400223A US40022373A US3871071A US 3871071 A US3871071 A US 3871071A US 400223 A US400223 A US 400223A US 40022373 A US40022373 A US 40022373A US 3871071 A US3871071 A US 3871071A
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US
United States
Prior art keywords
body member
rib portions
die set
conductor
die
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
Application number
US400223A
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English (en)
Inventor
Albert Michael Luongo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Installation Products Inc
Original Assignee
Thomas and Betts Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomas and Betts Corp filed Critical Thomas and Betts Corp
Priority to US400223A priority Critical patent/US3871071A/en
Priority to AU70870/74A priority patent/AU7087074A/en
Priority to NL7410140A priority patent/NL7410140A/xx
Priority to DE2443385A priority patent/DE2443385A1/de
Priority to DE7430530*[U priority patent/DE7430530U/de
Priority to IT53029/74A priority patent/IT1019279B/it
Priority to FR7432049A priority patent/FR2245104A1/fr
Priority to JP49108940A priority patent/JPS5059789A/ja
Priority to BE148842A priority patent/BE820282A/xx
Priority to SE7412008A priority patent/SE7412008L/
Application granted granted Critical
Publication of US3871071A publication Critical patent/US3871071A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/058—Crimping mandrels
    • 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
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49181—Assembling terminal to elongated conductor by deforming
    • Y10T29/49185—Assembling terminal to elongated conductor by deforming of terminal

Definitions

  • a method of forming an electrical connection comprises selectively radially compressing a ribbed, malleable body member about an enclosed conductor in a two-stage, biaxial crimping operation wherein longitudinally extending rib portions which remain substantially undeformed after the first crimping operation are compacted into the remaining material of the body member after selective rotation of the body member prior to the second crimping operation to substantially eliminate any voids created in the connection by the tendency of the body member to spring back after the initial crimping operation.
  • the biaxial crimp is effected preferably in a selectively shaped die cavity having recesses arranged to freely accommodate the ribbed portion only when the body member is disposed therewithin in a first orientation, but offset therefrom when the body member is selectively rotated preparatory to the second crimping operation.
  • the invention is directed to the field of connectors and principally to a method for forming an improved electrical connection.
  • the connector tends to relax somewhat upon its removal from the crimping dies due to its inherent elasticity, thereby reducing the engaging force of the connector about the conductor and creating, in many instances, voids between the connector inner surface and the enclosed conductor leading to rapid corrosion and deterioration of the connection as moisture and contaminants entering the voids are trapped between the inner surface of the connector and the adjacent exterior surface of the enclosed conductor. Attempts to correct this condition by applying, an increased crimping force to the connector often results in the fracture and at least partial destruction of the connector, due to its inability to withstand the increased pressures required to eliminate such voids.
  • the invention overcomes the limitations and difficulties noted above with respect to prior art devices by providing an electrical connector adapted to be compressively deformed in a two-stage crimping operation to provide a crimped connection which is more reliable, secure and more positive than that obtainable with such prior art devices.
  • the connector comprises a body member formed of malleable metallic material adapted to be crimped intimately about the conductor engaged within a conductor receiving cavity defined by the inner surface of said body member.
  • a pair of ribs in generally opposed relationship extending along the exterior of the body member in a lengthwise direction are disposed in a horizontal plane and are adapted to remain substantially intact during the initial crimping operation after which the connector is selectively rotated within the dies so that such rib portions engage the upper and lower portions of the crimping die whereby upon the second crimping operation the rib portions are compressed into the body member to cause further compression of the body member about the engaged conductor thereby eliminating the voids created in the first crimping operation.
  • the body member may be formed in either a closed or open barrel configuration in any one of a number of commonly employed shapes adaptable for crimping.
  • Portions of the outer surface of the body member may be either generally arcuately formed or compressed of one or more planar surface extending lengthwise of the body member in general conformance with the shape of the dies employed to crimp such body member.
  • the invention provides a novel means and method for reducing the gap at the seam formed after crimping to further decrease the possibility of voids being created in the completed connection. It is therefore an object of this invention to provide an improved electrical connection.
  • FIG. 1 is a perspective view, partly in section and partly cut away of an electrical connector for use in a method for forming an electrical connection in accordance with the concepts of the invention.
  • FIG. 2 is a front elevational view showing one body member of the device of FIG. 1 disposed in a die prior to the crimping thereof.
  • FIG. 3 is a front elevational view showing the body member of FIG. 2 after the first crimping operation.
  • FIG. 4 is a fragmentary perspective view, partly in section, showing the connection of FIG. 3 in further detail.
  • FIG. 5 is a front elevational view showing the connec tion of FIG. 3 rotated in the die prior to initiation of the second crimping operation.
  • FIG. 6 is a front elevational view showing the connection of FIG. 5 after the second crimping operation.
  • FIG. 7 is a fragmentary perspective view of a further embodiment of the closed barrel body member shown in FIG. 1.
  • FIG. 8 is a front elevational view, in section, showing the device of FIG. 7 disposed between the jaws of a die prior to crimping.
  • FIG. 9 is a front elevational view, in section, of the device of FIG. 7 after the first crimping operation.
  • FIG. is a front elevational view, in section, showing the connection of FIG. 9 rotated in the die prior to initiation of the second crimping operation.
  • FIG. 11 is a fragmentary perspective view of a further embodiment of an electrical connector constructed in accordance with the concepts of the invention.
  • FIGS. 1, 2, 3, 4, 5 and 6 there is shown an electrical connector 20 for employment in a method for forming an electrical connection constructed in accordance with the concepts of the invention and comprising a generally U-shaped body'member 22 having a pair of spaced side walls 24, 24' attached at their first ends 26, 26' respectively, to a base portion 28 shown as comprising three generally fiat planar surfaces (See FIG. 2) extending lengthwise of the body member 22 forming generally one half of an hexagonal exterior configuration.
  • the second or free ends 30, 30 of the side walls 24, 24 respectively, define the open end of the body member 22.
  • a conductor receiving cavity 32 in which is shown disposed a stranded conductor cable 34 is defined by the inner surface 36 of the body member 22.
  • rib portions 38, 38 Extending lengthwise along the exterior of the body member 22 generally adjacent the juncture between the side walls 24, 24' and the base portion 28 of the body member 22 are rib portions 38, 38 arranged in opposing relationship on either side of the body member 22.
  • the side walls 24, 24 taper convergingly from their first ends 26, 26, respectively, to their second or free ends 30, 30, respectively, which construction has been found advantageous for permitting the side walls 24, 24' to be crimped relatively uniformly about the conductors such as 34 to obtain the desired final configuration.
  • the side walls 24, 24 may have a uniform transverse cross section or may comprise a selectively variable transverse cross section throughout their length, ac-
  • the base portion 28 illustrated in FIG. 2 may be modified, as necessary or desirable to provide, for example, a generally arcuate external configuration as shown at 40 in FIG. 11.
  • two, four or more planar surfaces may be formed along the exterior surface of the base portion 28 to provide any one of a number of desirable external configurations.
  • the body member 22 is formed preferably of malleable metallic material comprising any one of a number of alloys commonly employed in electrical connectors, such alloys comprising, as a constituent part thereof, copper, aluminum, and like conductive materials. It has been found convenient for the embodiments illustrated herein to employ a cast copper material having high electrical conductivity and excellent crimping characteristics, being readily deformable into the desired crimped configuration.
  • body member 22 may be attached to a further body member 44, having a generally cylindrical transverse cross section, by a selectively formed connecting portion 46.
  • the connector 20 may thus be employed to join a conductor such as 48 to a conductor such as 34 at any desired point along the length of the latter by providing a tapped connection thereat.
  • the cylindrical body member 44 may of course be replaced by a body member such as 22 to provide a direct connection, for example, between two mutually perpendicular conductors such as 34 at any point along the length of either conductor.
  • the two body members 22 and 44 may be angularly offset from one another in either coplanar or offset planar relationship, or aligned with one another along parallel axes in coincident or offset relationship, thus, for example, providing a means for connecting two conductors lying in a common plane but on different axes.
  • the body member 22 is shown disposed between a pair of upper and lower die members 50, 50' respectively, each having a die cavity 52, 52', respectively describing generally one half of an hexagonal contour to impart such final shape to the body member 22 as the die members 50, 50 are brought together.
  • the body member 22 is seated on the lower die member 50' so that its rib portions 38, 38 extend slightly beyond the die cavity 52' and, prior to crimping, the rib portions serve to locate the body member 22 in the die cavity during the first crimping operation.
  • Each of the die members 50, 50 further comprises a pair of recesses 54, 54 and 56, 56', respectively, adjacent to and outwardly from the die cavities 52, 52' respectively.
  • rib portions 38, 38' have been deformed slightly between the opposing pairs of recesses 54, 56, and 54', 56', respectively, but only to a minimal extent, although such rib portions may be left substantially intact during the first crimping operation without departing from the spirit of the invention and within the concepts herein disclosed.
  • a gap 58 is created upon closure of the side walls 24, 24' due to the natural elasticity of the body member 22 since, upon compression by the die members 50, 50' the resiliency of the material causes it to return slightly to its original uncrimped state so that the free ends 30, 30' of the side walls 24, 24', although urged together in directly abutting relationship during the crimping operation, tend to separate slightly as shown.
  • This gap or separation 58 creates a void in the crimped connection which tends to entrap contaminating materials and cause oxidation of the crimped connection in the area generally adjacent such void.
  • the gap 58 extends generally uniformly along the entire length of the body member 22 generally parallel to the shoulder portions 38, 38.
  • the actual width of the gap 58 will be determined, to some extent, by the degree of force applied by the die members 50, 50', the resiliency of the connector material, and the particular shape of the die cavity surfaces 52, 52. For example, as the size of the die cavities are decreased, in proportion to the size of the body member 22, the compressive force exerted on the body member 22 during crimping will be proportionately increased.
  • any excessive force exerted on the body member 22 in a single stage crimping operation may tend to fracture a portion of the body member due to highly localized stresses being produced thereon, therefore limiting the amount of compressive force which may be exerted on the body member 22 during this first stageof crimp.
  • the die members 50, 50' are separated to permit the crimped body member 22 to be selectively rotated into position for the second stage of crimp as shown for example in FIG. 5, where the rib portions 38, 38' are shown rotated through approximately 60 about the longitudinal axis of the body member.
  • the body member 22 is effectively prevented from rotating back to its original position by the interengagement between the rib portion 38, 38' and the interior surface of the die members 50, 50'.
  • the body member 22 is now in position for the second crimping operation whereby the die member 50, 50' are brought together again about the rotated body member 22 to complete the second crimping operation.
  • the die members 50 Had the rib portions 38, 38' not been present during the second crimping operation the die members 50,
  • . 50 would encounter little resistance from the preformed body member 22 since the shape thereof now conforms essentially to the interior surface of each of the die members 50, 50'.
  • the inner surfaces or edges of the die members 50, 50' adjacent thereto will impart a compressive force thereto compressing each of the rib portions 38, 38 into the body member 22 causing further compression thereof with a subsequent closing of the gap 58, as illustrated in FIG. 6.
  • selective portions of the body member 22 have been locally subjected to a further compressive force as a result of rib portions 38,38 being driven thereinto while the remainder of the body member 22 has been left essentially undisturbed.
  • the body member 44 illustrated in FIG. 1 may have attached thereto or integral therewith a pair of rib portions 60, 60 shown in FIG. 7 as extending longitudinally along opposing sides of a cylindrically formed body member 62.
  • the rib portions 60, 60' are essentially duplicative of the elements 38, 38 described hereinabove with respect to the body member 22.
  • the body member 62 is disposed between die members such as 50, 50' so that the bottom portion of the body member 62 is seated within the die cavity of the lower die member 50 generally as shown in FIG. 8.
  • the rib portions 60, 60 extend outwardly beyond the die cavity to prevent rotation of the body member 62 and, according to the particular size of the body member, may provide a partial support therefore within the cavity of the lower die member 50.
  • the die members 50, 50 are now brought together so that the body member 62 is compressed into the configuration shown in FIG. 9, the external surface of the body member 62 being formed into an essentially hexagonal transverse cross section while the rib portions 60, 60' are left substantially intact in a manner similar to that shown with respect to elements 38, 38' of the body member 22 illustrated in FIG. 1.
  • the die members 50, 50' are then separated to permit the body members 52 to be rotated therein essentially as shown in FIG.
  • the body member 64 comprises two pair of side walls 66, 66 and 68, 68', each pair being essentially duplicative of the side walls 24, 24 described above with respect to the embodiments illustrated in FIGS. 1 through 6.
  • This bifurcated arrangement permits each of the pair of side walls 66, 66' and 68, 68 to be crimped independently of the other pair, if necessary or desirable, where for example, it is desired to provide a splice-type connection so that one conductor (not shown) may be inserted from the left side of FIG. 11 into that portion of the body member 64 flanked by the side walls 66, 66' while another conductor is inserted from the right side of FIG. 11 within the side walls 68, 68' of the body body member 64, and the side walls crimped thereover in a manner similar to that described heretofore.
  • the base portion 40 of the body member 64 may of course be suitably configured in almost any convenient shape commensurate with the shape of the dies employed therewith and the final contour desired.
  • Each of the two pair of rib portions 70, 70' and 72, 72' are each essentially duplicative of elements 38, 38 and 60, 60 described heretofore, and are separated from one another by a gap 74, 74', respectively.
  • the respective rib portions are compacted into the remaining material of the body member, as heretofore described, to provide a spliced joint of superior electrical and mechanical characteristics.
  • the rib portion also provide a convenient and novel means for determining whether or not the second crimping operation has been performed since the appearance or existance of such portions will indicate that the connector has been subjected only to a single crimping operation or, if it has been subjected to a multiple crimping operation, has not been rotated in the die sufficiently to cause such rib portions to be compressed into the remaining material of the body member. It has been found that the body member may be rotated from its initial position, after the first crimping operation, in the order of from 45 to 90, depending upon the particular die cavity configuration, preparatory to closure of the dies for the second crimping operation, to effect the desired compacting of the rib portions into the remaining body member material.
  • a method of forming an electrical connection comprising the steps of: providing a connector having a conductor engaging body member formed of malleable metallic material and having an inner surface, an outer surface, a conductor receiving cavity defined by said inner surface and extending longitudinally through said body member, and a pair of symmetrically formed rib portions lying in a common plane and extending lengthwise on opposite sides of said body member along said outer surface there- .of; placing a selective length of a conductor within said conductor receiving cavity; providing a die set reciprocatingly operable along axis and having complementary die cavities selectively shaped to impart a predetermined external contour to said body member and mating recessed portions disposed outside of the perimeter of said die cavities and selectively sized to provide clearance about said rib portions; orienting said body member in a first position within said die set so that said rib portions are disposed in a plane generally normal to the operating axis of said die set and are aligned generally coincident with said recesses; then operating said die set to radially compress said body member
  • a method of forming an electrical connection comprising the steps of: providing a connector having a generally U-shaped conductor engaging body member formed of malleable metallic material, said body member having a pair of symmetrically formed rib portions lying in a common plane and extending lengthwise on opposite sides of said body member along the exterior thereof generally adjacent the bight of said U- shape; placing a selective length of a conductor within the interior of said U-shaped; providing a die set reciprocatingly operable along a single axis and having complementary die cavities selectively shaped to impart a predetermined external contour to said body member and mating recessed portions disposed outside of the perimeter of said die cavities and selectively sized to provide clearance about said rib portions; orienting said body member in a first position within said die set so that said rib portions are disposed in a plane generally normal to the operating axis of said die set and are aligned generally coincident with said recesses; then operating said die set to radially compress said body member about said conductor along a given axis

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
US400223A 1973-09-24 1973-09-24 Method of forming an electrical connection Expired - Lifetime US3871071A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US400223A US3871071A (en) 1973-09-24 1973-09-24 Method of forming an electrical connection
AU70870/74A AU7087074A (en) 1973-09-24 1974-07-04 Electrical connection
NL7410140A NL7410140A (nl) 1973-09-24 1974-07-26 Werkwijze voor de vorming van een elektrische verbinding en daarvoor te gebruiken verbindings-
DE7430530*[U DE7430530U (de) 1973-09-24 1974-09-11 Formwerkzeug zum Herstellen einer elektrischen Leiterverbindungsvorrichtung
DE2443385A DE2443385A1 (de) 1973-09-24 1974-09-11 Elektrische verbindungsvorrichtung, verfahren zum herstellen einer elektrischen und mechanischen verbindung und formwerkzeug zum durchfuehren dieses verfahrens
IT53029/74A IT1019279B (it) 1973-09-24 1974-09-16 Metodo per formare connessioni elettriche e prodotti ottenuti
FR7432049A FR2245104A1 (enrdf_load_stackoverflow) 1973-09-24 1974-09-23
JP49108940A JPS5059789A (enrdf_load_stackoverflow) 1973-09-24 1974-09-24
BE148842A BE820282A (fr) 1973-09-24 1974-09-24 Procede pour former une connexion electrique
SE7412008A SE7412008L (enrdf_load_stackoverflow) 1973-09-24 1974-09-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400223A US3871071A (en) 1973-09-24 1973-09-24 Method of forming an electrical connection

Publications (1)

Publication Number Publication Date
US3871071A true US3871071A (en) 1975-03-18

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ID=23582719

Family Applications (1)

Application Number Title Priority Date Filing Date
US400223A Expired - Lifetime US3871071A (en) 1973-09-24 1973-09-24 Method of forming an electrical connection

Country Status (9)

Country Link
US (1) US3871071A (enrdf_load_stackoverflow)
JP (1) JPS5059789A (enrdf_load_stackoverflow)
AU (1) AU7087074A (enrdf_load_stackoverflow)
BE (1) BE820282A (enrdf_load_stackoverflow)
DE (2) DE7430530U (enrdf_load_stackoverflow)
FR (1) FR2245104A1 (enrdf_load_stackoverflow)
IT (1) IT1019279B (enrdf_load_stackoverflow)
NL (1) NL7410140A (enrdf_load_stackoverflow)
SE (1) SE7412008L (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997020363A1 (en) * 1995-11-30 1997-06-05 The Whitaker Corporation Tools for crimping an electrical contact onto a conductor
US6330739B1 (en) * 1998-04-20 2001-12-18 Denso Corporation Caulking method
US6395159B2 (en) * 1997-08-29 2002-05-28 Ngk Spark Plug Co., Ltd. Oxygen sensor
US6568075B1 (en) * 1998-07-06 2003-05-27 Yazaki Corporation Electrical terminal fastening method
WO2006034839A1 (de) * 2004-09-28 2006-04-06 Hirschmann Car Communication Gmbh Stecker oder kuppler mit einem im stanzbiegeverfahren hergestellten innenleiterelement
CN102386491A (zh) * 2011-09-20 2012-03-21 昆山攀峰电子有限公司 压接式电极端子

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451643A1 (fr) * 1979-03-15 1980-10-10 Sncf Connecteur pour fil de contact de catenaire
JPH01107484A (ja) * 1987-10-21 1989-04-25 Hitachi Lighting Ltd リード線圧着方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727895A (en) * 1927-04-02 1929-09-10 Joseph L Mraz Tubular joint and method for making same
US1793293A (en) * 1925-05-18 1931-02-17 Aluminum Co Of America Fitting for composite cables and method of applying same
US2102325A (en) * 1936-06-09 1937-12-14 Boeing Aircraft Co Airplane control rod and method of making the same
US2226849A (en) * 1936-07-03 1940-12-31 Kingston Products Corp Electrical connection means
US2476731A (en) * 1945-10-03 1949-07-19 Roeblings John A Sons Co Wire rope splice and method of making the same
US2622314A (en) * 1947-07-07 1952-12-23 Thomas & Betts Corp Method of forming spliced sector cables
US2983976A (en) * 1957-06-20 1961-05-16 Esco Corp Duplex sleeve structure
US3111157A (en) * 1961-04-04 1963-11-19 Du Pont Crimping apparatus
US3381156A (en) * 1965-12-30 1968-04-30 Kentucky Electronics Inc Electrodes for cathode ray tubes with abutted ends meeting in a seam
US3441707A (en) * 1965-08-10 1969-04-29 Joyal Mfg Corp Machine for making wire terminals
US3551999A (en) * 1966-12-14 1971-01-05 Siegfried Gutmann Butt-joining of steel bars

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793293A (en) * 1925-05-18 1931-02-17 Aluminum Co Of America Fitting for composite cables and method of applying same
US1727895A (en) * 1927-04-02 1929-09-10 Joseph L Mraz Tubular joint and method for making same
US2102325A (en) * 1936-06-09 1937-12-14 Boeing Aircraft Co Airplane control rod and method of making the same
US2226849A (en) * 1936-07-03 1940-12-31 Kingston Products Corp Electrical connection means
US2476731A (en) * 1945-10-03 1949-07-19 Roeblings John A Sons Co Wire rope splice and method of making the same
US2622314A (en) * 1947-07-07 1952-12-23 Thomas & Betts Corp Method of forming spliced sector cables
US2983976A (en) * 1957-06-20 1961-05-16 Esco Corp Duplex sleeve structure
US3111157A (en) * 1961-04-04 1963-11-19 Du Pont Crimping apparatus
US3441707A (en) * 1965-08-10 1969-04-29 Joyal Mfg Corp Machine for making wire terminals
US3381156A (en) * 1965-12-30 1968-04-30 Kentucky Electronics Inc Electrodes for cathode ray tubes with abutted ends meeting in a seam
US3551999A (en) * 1966-12-14 1971-01-05 Siegfried Gutmann Butt-joining of steel bars

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692294A (en) * 1995-06-09 1997-12-02 The Whitaker Corporation Tools for crimping an electrical contact onto a conductor
WO1997020363A1 (en) * 1995-11-30 1997-06-05 The Whitaker Corporation Tools for crimping an electrical contact onto a conductor
US6395159B2 (en) * 1997-08-29 2002-05-28 Ngk Spark Plug Co., Ltd. Oxygen sensor
US6330739B1 (en) * 1998-04-20 2001-12-18 Denso Corporation Caulking method
US6568075B1 (en) * 1998-07-06 2003-05-27 Yazaki Corporation Electrical terminal fastening method
WO2006034839A1 (de) * 2004-09-28 2006-04-06 Hirschmann Car Communication Gmbh Stecker oder kuppler mit einem im stanzbiegeverfahren hergestellten innenleiterelement
CN102386491A (zh) * 2011-09-20 2012-03-21 昆山攀峰电子有限公司 压接式电极端子
CN102386491B (zh) * 2011-09-20 2014-05-28 昆山攀峰电子有限公司 压接式电极端子

Also Published As

Publication number Publication date
JPS5059789A (enrdf_load_stackoverflow) 1975-05-23
IT1019279B (it) 1977-11-10
NL7410140A (nl) 1975-03-26
FR2245104A1 (enrdf_load_stackoverflow) 1975-04-18
SE7412008L (enrdf_load_stackoverflow) 1975-03-25
DE7430530U (de) 1975-04-10
AU7087074A (en) 1976-01-08
DE2443385A1 (de) 1975-04-10
BE820282A (fr) 1975-03-24

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