EP1028487A1 - Electrical contact with wire nut - Google Patents

Electrical contact with wire nut Download PDF

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Publication number
EP1028487A1
EP1028487A1 EP00102708A EP00102708A EP1028487A1 EP 1028487 A1 EP1028487 A1 EP 1028487A1 EP 00102708 A EP00102708 A EP 00102708A EP 00102708 A EP00102708 A EP 00102708A EP 1028487 A1 EP1028487 A1 EP 1028487A1
Authority
EP
European Patent Office
Prior art keywords
electrical contact
end portion
helix
electrical
wire nut
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.)
Withdrawn
Application number
EP00102708A
Other languages
German (de)
French (fr)
Inventor
Christopher G. Chadbourne
Gregory P. Norton
Urs F. Nager, Jr.
Richard J. Birch
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.)
Anderson Interconnect Inc
Original Assignee
Anderson Interconnect Inc
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 Anderson Interconnect Inc filed Critical Anderson Interconnect Inc
Publication of EP1028487A1 publication Critical patent/EP1028487A1/en
Withdrawn legal-status Critical Current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
    • H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end

Definitions

  • the present invention relates to electrical contacts in general and, more particularly, to an electrical contact having a wire nut at one end thereof.
  • connection of one or more electrical conductors to electrical contacts is achieved through a variety of techniques including soldering, crimping, screw clamping and by "Chinese finger” mechanical grippers. Such techniques are time consuming and in the case of soldering or crimping are essentially non-reversible.
  • the electrical contact contains a wire nut end portion for mechanically and electrically engaging an electrical conductor.
  • the wire nut end portion is electrically connected to an electrical contact engaging end portion.
  • the wire nut end portion can transition directly into the electrical contact engaging end portion or there can be an intermediate portion between the two portions.
  • the wire nut end portion can be integrally formed in the contact or can be in the form of a helix inserted into a barrel on the electrical contact.
  • the invention is depicted in a number of embodiments.
  • the invention can be described as an electrical contact with a "wire nut" for electrical engagement with one or more electrical conductors.
  • Wire nuts are well known in the industry and utilize a helix coiled wire or equivalent to mechanically grip the conductor(s) together.
  • the helix coiled wire or equivalent can be uninsulated or more typically insulated with a surrounding insulative shell.
  • the present invention employs an uninsulated helix coiled wire and its equivalents to provide electrical connection with the other portion(s) of the electrical contact.
  • an electrical contact of the present invention indicated generally by the reference numeral 10.
  • the electrical contact 10 has three portions identified as an electrical contact engaging end portion 12, an intermediate portion 14 and a wire nut end portion 16.
  • FIG. 1 is a genderless contact in which a flat contact element 18 provides electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more the above-identified U.S. Patents.
  • the electrical contact shown in Figure 1 is formed from a single piece of metal with a helix produced by a plurality of inwardly extending helix defining elements 20 that are stamped from the outside before rolling the piece to produce barrel 22.
  • Figure 2 is similar to Figure 1 except that helix 24 is formed by drilling a solid barrel 26 and then tapping the drilled barrel 26.
  • Figure 3 illustrates the use of a separable helix coiled wire 28 that is positioned within hollow barrel 30 for mechanical and electrical engagement therewith.
  • the helix coiled wire can be mechanically and electrically secured to the barrel 30 by brazing or by other means as shown in Figures 4, 5 and 6.
  • the electrical contact engaging end portion 12 has an arcuate contact element 32 for electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more of the above-identified U.S. Patents.
  • Figure 4 depicts the use of a skive 34 to mechanically and electrically secure helix coiled wire 28 with respect to barrel 30.
  • Figures 5 and 6 illustrate the use of dimples 36 to mechanically and electrically secure the helix coiled wire with respect to barrel 30. These two Figures show the electrical contact engaging end portion 12 as a lug contact 38.
  • Figure 7 is similar to the electrical contact shown in Figure 1 except that the electrical contact engaging end portion 12 is a pin contact 40.
  • Figure 8 is a similar electrical contact with the electrical contact engaging end portion corresponding to the pin contact 40.
  • the helix 24 is formed by stamping the inside of the metal piece before rolling the piece to produce barrel 22 with the helix defining elements 42 located on the inside surface 44 of the barrel 22.
  • Figure 9 is similar to Figure 1, but with the electrical contact engaging end portion comprising a socket contact 46.
  • Figure 10 also is similar to Figure 1 but with the electrical contact engaging end portion comprising a lug contact 48.
  • Figure 11 is similar to Figure 2 with a drilled and tapped helix 24. However, the electrical contacting end portion is a lug contact 50.
  • Figures 12 through 19 illustrate other embodiments in which the intermediate portion 14 of the electrical contact 10 has been eliminated.
  • the electrical engaging end portion transitions directly into the wire nut end portion 16.
  • Figure 12 corresponds to Figure 2 without the intermediate portion 14.
  • Figure 13 corresponds to Figure 9 again without the intermediate portion 14.
  • Figure 14 is a view in section of Figure 13 showing the inwardly extending stamped helix defining elements 20.
  • Figure 15 corresponds to Figure 8 without the intermediate portion 14.
  • Figure 16 illustrates the socket contact 52 version of the pin contact illustrated in Figure 15.
  • Figure 17 depicts for purposes of illustration a generic pin/socket contact embodiment in which the helix 24 has one or more discontinuities 54. These discontinuities minimize the loosening of contact with a conductor once sufficient torque has been applied to a helix/conductor interface.
  • Figures 18 and 19 depict the separate helix coiled wire 28 in conjunction with a pin contact 56 ( Figure 18) and a socket contact 58 ( Figure 19). In each case, the electrical contact engaging end portion 12 transitions directly into the wire nut end portion 16.
  • the socket contact version of Figure 19 includes by way of illustration an electrically insulative shield 60 surrounding at least part of the wire nut portion. It will be appreciated that the shield 60 can surround the entire outer surface of barrel 22 and that this shield can be employed with any of the embodiments shown in Figures 1-18 above and Figure 20 discussed below.
  • Figure 20 combines the wire nut end portion of Figure 1 with the electrical contact engaging end portion of Figure 4 and with the addition of an integral formed spring portion 62.
  • the integrally formed spring portion 62 of electrical contact 64 can be employed in conjunction with a crimp contact end portion 66 and integrally formed with stop 68 as shown in Figure 21.
  • Electrical contact 64 can be inserted into a POWERPOLE housing 70 (e.g. see U.S. Patent No. 3,259,870) as shown in Figure 22 or an SB housing 72 (e.g. see U.S. Patent No. 3,909,099) as shown in Figure 23.
  • POWERPOLE housing 70 e.g. see U.S. Patent No. 3,259,870
  • SB housing 72 e.g. see U.S. Patent No. 3,909,099
  • Figure 26 depicts a wire splice formed from a longitudinally extending electrically conductive tube 74 and two helix coiled wires 76 and 78 that are mechanically and electrically secured within tube 74 by brazing, welding or deformation of tube e.g. by dimples (see Figures 5 and 6).
  • an electrically insulative shield 80 surrounds tube 74.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

An electrical contact has an electrical contact engaging end portion, an intermediate portion and a wire nut end portion that mechanically and electrically engages an electrical conductor. The three portions are electrically connected together. The wire nut portion can be integrally formed with the contact or can be a helix inserted into a barrel formed on the contact. In one embodiment the intermediate portion is omitted with the electrical contact engaging end portion transitioning directly into the wire nut portion. The electrical contact engaging end portion can be a pin contact, a socket contact, a genderless contact, a lug contact and the like. In another embodiment, the electrical contact includes an integrally formed spring portion.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to electrical contacts in general and, more particularly, to an electrical contact having a wire nut at one end thereof.
  • Electrical contacts that fit into housings to form an electrical connector are well known in the art. Representative examples are shown in U.S. Patent Nos. 3,091,746; 3,218,599; 3,259,870; 3,654,586; 3,794,957 and 3,909,099 which are incorporated herein by reference. Currently available genderless electrical connectors include those manufactured and sold by Anderson Interconnect, Inc. Of Sterling, MA under the United States Registered Trademarks SB and POWERPOLE.
  • Connection of one or more electrical conductors to electrical contacts is achieved through a variety of techniques including soldering, crimping, screw clamping and by "Chinese finger" mechanical grippers. Such techniques are time consuming and in the case of soldering or crimping are essentially non-reversible.
  • It is accordingly a general object of the invention to provide an electrical contact that simplifies the connection of an electrical conductor to the contact.
    • BRIEF DESCRIPTION OF THE INVENTION
  • The electrical contact contains a wire nut end portion for mechanically and electrically engaging an electrical conductor. The wire nut end portion is electrically connected to an electrical contact engaging end portion. The wire nut end portion can transition directly into the electrical contact engaging end portion or there can be an intermediate portion between the two portions. The wire nut end portion can be integrally formed in the contact or can be in the form of a helix inserted into a barrel on the electrical contact.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a solid model isometric view of an electrical contact with an integrally formed wire nut;
  • Figure 2 is a solid model isometric view in section showing an integral wire nut formed by drilling and tapping;
  • Figure 3 is an exploded solid model isometric view showing a separate helix coiled wire that forms the wire nut;
  • Figure 4 is similar to Figure 3 illustrating a skive to mechanically secure the separate helix coiled wire with respect to the electrical contact;
  • Figure 5 is a solid model isometric exploded view showing a separate helix coiled wire that is mechanically secured with respect to the electrical contact by inwardly extending dimples, one of which is depicted in Figure 5;
  • Figure 6 is a solid model isometric view in section showing dimples to mechanically secure the separate helix coiled wire of Figure 3 with respect to the electrical contact;
  • Figure 7 is a solid model isometric view of a pin contact and an integrally formed wire nut;
  • Figure 8 is a solid model isometric view of a socket contact and a stamped integrally formed wire nut;
  • Figure 9 is a solid model isometric view of a socket contact and an integrally formed wire nut;
  • Figure 10 is a solid model isometric view of a lug contact and an integrally formed wire nut;
  • Figure 11 is a solid model isometric view in section showing an integral wire nut formed by drilling and tapping;
  • Figure 12 is a solid model isometric view showing a pin contact that transitions directly into the wire nut;
  • Figure 13 is a solid model isometric view showing a socket contact that transitions directly into the wire nut;
  • Figure 14 is a solid model isometric view in partial section of a socket contact that transitions directly into the wire nut;
  • Figure 15 is a solid model isometric view in section of a pin contact that transitions directly into a wire nut formed by drilling and tapping;
  • Figure 16 is a solid model isometric view in section of a socket contact that transitions directly into a wire nut formed by drilling and tapping;
  • Figure 17 is a solid model isometric view of a socket contact that transitions directly into a wire nut formed by drilling and tapping with a discontinuity in the helix;
  • Figure 18 is a solid model isometric view of a pin contact that transitions directly into a wire nut with a separate helix coiled wire;
  • Figure 19 is a solid model isometric view of a socket contact that transitions directly into a wire nut with a separate helix coiled wire.
  • Figure 20 is a solid model isometric view of an electrical contact with an integrally formed wire nut and an integrally formed spring;
  • Figure 21 is similar to Figure 5 but employs a crimp contact end portion;
  • Figure 22 is a solid model isometric view in section illustrating the electrical contact of Figure 21 positioned in a housing to form an electrical connector;
  • Figure 23 is similar to Figure 22 but illustrates the electrical contact in a different housing;
  • Figure 24 is a solid model isometric view in section showing the electrical contact of Figure 1 in a housing to form an electrical connector;
  • Figure 25 is a view in side section of the electrical connector of Figure 24; and,
  • Figure 26 is a solid model isometric view of a wire splice using two helix coiled wires.
    • DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
  • Turning now to the drawings, the invention is depicted in a number of embodiments. In general, the invention can be described as an electrical contact with a "wire nut" for electrical engagement with one or more electrical conductors. Wire nuts are well known in the industry and utilize a helix coiled wire or equivalent to mechanically grip the conductor(s) together. The helix coiled wire or equivalent can be uninsulated or more typically insulated with a surrounding insulative shell.
  • The present invention employs an uninsulated helix coiled wire and its equivalents to provide electrical connection with the other portion(s) of the electrical contact.
  • Referring to Figures 1 through 11, there is shown an electrical contact of the present invention indicated generally by the reference numeral 10. The electrical contact 10 has three portions identified as an electrical contact engaging end portion 12, an intermediate portion 14 and a wire nut end portion 16.
  • The embodiment illustrated in Figure 1 is a genderless contact in which a flat contact element 18 provides electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more the above-identified U.S. Patents.
  • It will be appreciated that the electrical contact shown in Figure 1 is formed from a single piece of metal with a helix produced by a plurality of inwardly extending helix defining elements 20 that are stamped from the outside before rolling the piece to produce barrel 22.
  • Figure 2 is similar to Figure 1 except that helix 24 is formed by drilling a solid barrel 26 and then tapping the drilled barrel 26.
  • Figure 3 illustrates the use of a separable helix coiled wire 28 that is positioned within hollow barrel 30 for mechanical and electrical engagement therewith. The helix coiled wire can be mechanically and electrically secured to the barrel 30 by brazing or by other means as shown in Figures 4, 5 and 6. The electrical contact engaging end portion 12 has an arcuate contact element 32 for electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more of the above-identified U.S. Patents.
  • Figure 4 depicts the use of a skive 34 to mechanically and electrically secure helix coiled wire 28 with respect to barrel 30.
  • Figures 5 and 6 illustrate the use of dimples 36 to mechanically and electrically secure the helix coiled wire with respect to barrel 30. These two Figures show the electrical contact engaging end portion 12 as a lug contact 38.
  • Figure 7 is similar to the electrical contact shown in Figure 1 except that the electrical contact engaging end portion 12 is a pin contact 40. Figure 8 is a similar electrical contact with the electrical contact engaging end portion corresponding to the pin contact 40. However, in this embodiment the helix 24 is formed by stamping the inside of the metal piece before rolling the piece to produce barrel 22 with the helix defining elements 42 located on the inside surface 44 of the barrel 22.
  • Figure 9 is similar to Figure 1, but with the electrical contact engaging end portion comprising a socket contact 46.
  • Figure 10 also is similar to Figure 1 but with the electrical contact engaging end portion comprising a lug contact 48.
  • Figure 11 is similar to Figure 2 with a drilled and tapped helix 24. However, the electrical contacting end portion is a lug contact 50.
  • Figures 12 through 19 illustrate other embodiments in which the intermediate portion 14 of the electrical contact 10 has been eliminated. In other words, the electrical engaging end portion transitions directly into the wire nut end portion 16.
  • Figure 12 corresponds to Figure 2 without the intermediate portion 14.
  • Similarly, Figure 13 corresponds to Figure 9 again without the intermediate portion 14. Figure 14 is a view in section of Figure 13 showing the inwardly extending stamped helix defining elements 20.
  • Figure 15 corresponds to Figure 8 without the intermediate portion 14.
  • Figure 16 illustrates the socket contact 52 version of the pin contact illustrated in Figure 15.
  • Figure 17 depicts for purposes of illustration a generic pin/socket contact embodiment in which the helix 24 has one or more discontinuities 54. These discontinuities minimize the loosening of contact with a conductor once sufficient torque has been applied to a helix/conductor interface.
  • Figures 18 and 19 depict the separate helix coiled wire 28 in conjunction with a pin contact 56 (Figure 18) and a socket contact 58 (Figure 19). In each case, the electrical contact engaging end portion 12 transitions directly into the wire nut end portion 16.
  • The socket contact version of Figure 19 includes by way of illustration an electrically insulative shield 60 surrounding at least part of the wire nut portion. It will be appreciated that the shield 60 can surround the entire outer surface of barrel 22 and that this shield can be employed with any of the embodiments shown in Figures 1-18 above and Figure 20 discussed below.
  • Figure 20 combines the wire nut end portion of Figure 1 with the electrical contact engaging end portion of Figure 4 and with the addition of an integral formed spring portion 62. The integrally formed spring portion 62 of electrical contact 64 can be employed in conjunction with a crimp contact end portion 66 and integrally formed with stop 68 as shown in Figure 21.
  • Electrical contact 64 can be inserted into a POWERPOLE housing 70 (e.g. see U.S. Patent No. 3,259,870) as shown in Figure 22 or an SB housing 72 (e.g. see U.S. Patent No. 3,909,099) as shown in Figure 23.
  • Furthermore, all of the embodiments shown in Figures 1-20 can be used with these housings as illustrated for the POWERPOLE housing 70 in Figures 24 and 25.
  • Figure 26 depicts a wire splice formed from a longitudinally extending electrically conductive tube 74 and two helix coiled wires 76 and 78 that are mechanically and electrically secured within tube 74 by brazing, welding or deformation of tube e.g. by dimples (see Figures 5 and 6). Preferably, an electrically insulative shield 80 surrounds tube 74.
  • Having described in detail a preferred embodiment of our invention, it will now be obvious to those having ordinary skill in the art that numerous modifications can be made therein without departing from the scope of the invention as defined in the following claims.

Claims (36)

  1. A longitudinally extending electrical contact having a longitudinal axis and comprising:
    an electrical contact engaging end portion for engaging another electrical contact; and,
    a wire nut end portion for mechanically and electrically engaging an electrical conductor, said electrical contact engaging end portion and said wire nut end portion being electrically connected together.
  2. A longitudinally extending electrical contact having a longitudinal axis and comprising:
    an electrical contact engaging end portion for engaging another electrical contact;
    an intermediate portion; and,
    a wire nut end portion for mechanically and electrically engaging an electrical conductor, with said electrical contact engaging end portion, said intermediate portion and said wire nut end portion being electrically connected together.
  3. The electrical contact of Claims 1 or 2 wherein said wire nut end portion is integrally formed with said electrical contact engaging end portion.
  4. The electrical contact of Claims 1 or 2 wherein said wire nut end portion is integrally formed with said electrical contact engaging end portion from a single piece of metal.
  5. The electrical contact of Claims 1 or 2 wherein the electrical contact engaging end portion comprises a pin contact.
  6. The electrical contact of Claims 1 or 2 wherein the electrical contact engaging end portion comprises a socket contact.
  7. The electrical contact of Claims 1 or 2 wherein the electrical contact engaging end portion comprises a genderless contact.
  8. The electrical contact of Claims 1 or 2 wherein the electrical contact engaging end portion comprises a lug contact.
  9. The electrical contact of Claims 1 or 2 further comprising an integrally formed spring portion.
  10. The electrical contact of Claims 1 or 2 further comprising an integrally formed spring portion that extends towards said wire nut portion.
  11. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed barrel and a helix coiled wire positioned within and secured with respect to said barrel.
  12. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix formed on said inside surface with the smallest portion of the helix facing the electrical contact end portion.
  13. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix formed on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix having at least one discontinuity to minimize loosening of contact with a conductor once sufficient torque has been applied to a helix/conductor interface.
  14. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by stamping said inside surface before formation of said barrel.
  15. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed barrel having an outside surface, an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by stamping said outside surface before formation of said barrel.
  16. The electrical contact of Claims 1 or 2 wherein said wire nut portion comprises an integrally formed, drilled and tapped barrel having an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by tapping the inside surface of said barrel.
  17. The electrical contact of claims 1, 2, 3, 4, 5, 6, 7, 8, 9 10, 11, 12, 13, 14, 15, and 16 wherein the wire nut end portion further comprises an electrically insulative shield surrounding at least part of the wire nut end portion.
  18. An electrical connector comprising:
    an insulative housing and a longitudinally extending electrical contact having a longitudinal axis and being mounted in said insulative housing, said electrical contact comprising:
    a longitudinally extending electrical contact having a longitudinal axis and comprising:
    an electrical contact engaging end portion for engaging another electrical contact; and,
    a wire nut end portion for mechanically and electrically engaging an electrical conductor, said electrical contact engaging end portion and said wire nut end portion being electrically connected together.
  19. An electrical connector comprising:
    an insulative housing and a longitudinally extending electrical contact having a longitudinal axis and being mounted in said insulative housing, said electrical contact comprising:
    a longitudinally extending electrical contact having a longitudinal axis and comprising:
    an electrical contact engaging end portion for engaging another electrical contact;
    an intermediate portion; and,
    a wire nut end portion for mechanically and electrically engaging an electrical conductor, with said electrical contact engaging end portion, said intermediate portion and said wire nut end portion being electrically connected together.
  20. The electrical connector of Claims 18 or 19 wherein said wire nut end portion is integrally formed with said electrical contact engaging end portion.
  21. The electrical connector of Claims 18 or 19 wherein said wire nut end portion is integrally formed with said electrical contact engaging end portion from a single piece of metal.
  22. The electrical connector of Claims 18 or 19 wherein the electrical contact engaging end portion comprises a pin contact.
  23. The electrical connector of Claims 18 or 19 wherein the electrical contact engaging end portion comprises a socket contact.
  24. The electrical connector of Claims 18 or 19 wherein the electrical contact engaging end portion comprises a genderless contact.
  25. The electrical connector of Claims 18 or 19 wherein the electrical contact engaging end portion comprises a lug contact.
  26. The electrical connector of Claims 18 or 19 further comprising an integrally formed spring portion.
  27. The electrical connector of Claims 18 or 19 further comprising an integrally formed spring portion that extends towards said wire nut portion.
  28. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed barrel and a helix coiled wire positioned within and secured with respect to said barrel.
  29. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix formed on said inside surface with the smallest portion of the helix facing the electrical contact end portion.
  30. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix formed on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix having at least one discontinuity to minimize loosening of contact with a conductor once sufficient torque has been applied to a helix/conductor interface.
  31. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed barrel having an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by stamping said inside surface before formation of said barrel.
  32. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed barrel having an outside surface, an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by stamping said outside surface before formation of said barrel.
  33. The electrical connector of Claims 18 or 19 wherein said wire nut portion comprises an integrally formed, drilled and tapped barrel having an inside surface and a helix on said inside surface with the smallest portion of the helix facing the electrical contact end portion, said helix being formed by tapping the inside surface of said barrel.
  34. The electrical connector of claims 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 and 33 wherein the wire nut end portion further comprises an electrically insulative shield surrounding at least part of the wire nut end portion.
  35. An electrical splice comprising:
    a longitudinally extending electrically conductive tube;
    a first electrically conductive helix coiled wire having at least a portion thereof positioned within one end of said longitudinally extending tube; and,
    a second electrically conductive helix coiled wire having at least a portion thereof positioned within the other end of said longitudinally extending tube with the small ends of said first and second helix coiled wires facing each other and being in electrically conductive contact.
  36. The electrical splice of claim 35 further comprising an electrically insulative shield surrounding said tube.
EP00102708A 1999-02-12 2000-02-09 Electrical contact with wire nut Withdrawn EP1028487A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US248761 1994-05-25
US24876199A 1999-02-12 1999-02-12

Publications (1)

Publication Number Publication Date
EP1028487A1 true EP1028487A1 (en) 2000-08-16

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Application Number Title Priority Date Filing Date
EP00102708A Withdrawn EP1028487A1 (en) 1999-02-12 2000-02-09 Electrical contact with wire nut

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EP (1) EP1028487A1 (en)
JP (1) JP2000277191A (en)
KR (1) KR20000076646A (en)
AU (1) AU1529800A (en)
BR (1) BR0000373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9017112B1 (en) 2014-02-11 2015-04-28 Keith Knowles Electrical wire nut with detachable break-off connectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011584A1 (en) * 1991-12-05 1993-06-10 Raychem S.A. Electrical connector
WO1993017467A1 (en) * 1992-02-20 1993-09-02 Raychem S.A. Electrical connector
US5531618A (en) * 1989-05-30 1996-07-02 Market; Roger A. Apparatus and method of connecting and terminating electrical conductors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531618A (en) * 1989-05-30 1996-07-02 Market; Roger A. Apparatus and method of connecting and terminating electrical conductors
WO1993011584A1 (en) * 1991-12-05 1993-06-10 Raychem S.A. Electrical connector
WO1993017467A1 (en) * 1992-02-20 1993-09-02 Raychem S.A. Electrical connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9017112B1 (en) 2014-02-11 2015-04-28 Keith Knowles Electrical wire nut with detachable break-off connectors

Also Published As

Publication number Publication date
BR0000373A (en) 2001-10-09
AU1529800A (en) 2000-08-17
KR20000076646A (en) 2000-12-26
JP2000277191A (en) 2000-10-06

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