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US4113338A Expired / Lapsed US ⏱️ 0.0 years remaining

Insulation-piercing contact

Assignee: Bunker Ramo Corp
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Filing: 1977-01-03
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Granted: 1978-09-12
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Expires: 1997-01-03
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Abstract

Abstract A contact member is disclosed having a novel insulation-piercing terminal which penetrates and strips insulation from a conductor to provide an optimal mechanical and electrical solderless connection with the conductor. The terminal includes means for radially penetrating the insulation, means for stripping the insulation from a longitudinal portion of the conductor and means for contacting the thus exposed conductor in wiping engagement.

Inventors

  • 👤 Tedford Hollace Spaulding

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:58
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2416; H01R4/242; H01R4/2425; H01R4/2437

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 107 words
A contact member for connection with an insulation-covered conductor comprising: an active contact element; and a terminal element adapted to pierce said insulation and electrically engage said conductor, said terminal element including insulation-cutting means for radially penetrating said insulation at a first longitudinal portion of said conductor, insulation-stripping means for stripping a segment of said insulation from a second longitudinal portion of said conductor and conductor-engaging means for contacting in wiping engagement substantially the entire length of said first and second longitudinal portions of said conductor, the portions of said terminal element contiguous with said conductor comprising smooth and continuous surfaces to prevent scoring of the conductor.
Claim 2
Dependent Claim 107 words
A contact member for connection with an insulation-covered conductor comprising: an active contact element; and a terminal element adapted to pierce said insulation and electrically engage said conductor, said terminal element including insulation-cutting means for radially penetrating said insulation at a first longitudinal portion of said conductor, insulation-stripping means for stripping a segment of said insulation from a second longitudinal portion of said conductor and conductor-engaging means for contacting in wiping engagement substantially the entire length of said first and second longitudinal portions of said conductor, the portions of said terminal element contiguous with said conductor comprising smooth and continuous surfaces to prevent scoring of the conductor.
Claim 3
Dependent Claim 22 words
The contact member of claim 1 wherein said active contact element and said terminal element form a unitary sheet metal contact member.
Claim 4
Dependent Claim 22 words
The contact member of claim 1 wherein said second portion has a longitudinal dimension substantially greater than that of said first portion.
Claim 5
Dependent Claim 43 words
The contact member of claim 1 wherein said terminal element includes two spaced and generally parallel side walls and said insulation-cutting means comprises a pair of flanges each formed integral with a lateral edge of one said side wall and extending outwardly therefrom.
Claim 6
Dependent Claim 20 words
The contact member of claim 4 wherein each said insulation-cutting flange is disposed generally perpendicular to its respective side wall.
Claim 7
Dependent Claim 19 words
The contact member of claim 4 wherein said insulation-stripping means comprises an inclined edge on each said side wall.
Claim 8
Dependent Claim 19 words
The contact member of claim 6 wherein said conductor-engaging means comprises the inside surface of each said side wall.
Claim 9
Dependent Claim 33 words
The contact member of claim 7 wherein each said flange includes an inclined cutting edge whereby said conductor is centered between said side walls as said conductor is pressed into said terminal element.
Claim 10
Dependent Claim 112 words
A contact member for connection with an insulation-covered conductor comprising an active contact element and an insulation-piercing terminal element, said terminal element having two spaced and generally parallel side walls, each said wall including: first and second lateral edges; an outwardly extending insulation-cutting flange integral with said first edge and having a cutting edge disposed perpendicular to the axis of the conductor to radially penetrate the insulation on the conductor; an insulation-stripping edge inclined in a conductor-insertion direction from said first edge toward said second edge; and an inside continuous surface free of cutting edges for engaging substantially the entire length of the conductor exposed after the insulation has been stripped therefrom.
Claim 11
Dependent Claim 112 words
A contact member for connection with an insulation-covered conductor comprising an active contact element and an insulation-piercing terminal element, said terminal element having two spaced and generally parallel side walls, each said wall including: first and second lateral edges; an outwardly extending insulation-cutting flange integral with said first edge and having a cutting edge disposed perpendicular to the axis of the conductor to radially penetrate the insulation on the conductor; an insulation-stripping edge inclined in a conductor-insertion direction from said first edge toward said second edge; and an inside continuous surface free of cutting edges for engaging substantially the entire length of the conductor exposed after the insulation has been stripped therefrom.
Claim 12
Dependent Claim 19 words
The contact member of claim 9 wherein said insulation-cutting flanges are disposed generally perpendicular to their respective side walls.
Claim 13
Dependent Claim 23 words
The contact member of claim 9 wherein said insulation-stripping edges have a longitudinal dimension substantially greater than the width of said insulation-cutting flanges.
Claim 14
Dependent Claim 23 words
The contact member of claim 9 wherein said active contact element and said insulation-piercing terminal element form a unitary sheet metal contact member.
Claim 15
Dependent Claim 32 words
The contact member of claim 9 wherein each said insulation-cutting flange includes an insulation-cutting edge, each insulation-cutting edge being inclined to assist in centering said conductor as it engages said terminal element.
Claim 16
Dependent Claim 89 words
In a contact member for connection with an insulation-covered conductor, a terminal element comprising: a pair of spaced side walls each including means for radially penetrating the insulation on a first longitudinal portion of said conductor, means for incrementally stripping a segment of said insulation from a second longitudinal portion of said conductor and means for contacting said first and second portions of said conductor in wiping engagement, the portions of said terminal element continguous with said conductor comprising smooth and continuous surfaces to prevent scoring of the conductor.
Claim 17
Dependent Claim 89 words
In a contact member for connection with an insulation-covered conductor, a terminal element comprising: a pair of spaced side walls each including means for radially penetrating the insulation on a first longitudinal portion of said conductor, means for incrementally stripping a segment of said insulation from a second longitudinal portion of said conductor and means for contacting said first and second portions of said conductor in wiping engagement, the portions of said terminal element continguous with said conductor comprising smooth and continuous surfaces to prevent scoring of the conductor.
Claim 18
Dependent Claim 142 words
A unitary sheet metal contact member for interconnection with an insulation-covered conductor comprising an active contact element and an insulation-piercing terminal element, said terminal element having two spaced and generally parallel and substantially planar side walls, each said wall including: an outwardly extending insulation-cutting flange integral with a first lateral edge of said side wall to radially penetrate the insulation covering a first longitudinal portion of the conductor; an insulation-stripping edge inclined in a conductor-insertion direction away from said first edge and toward a second lateral edge to incrementally strip the insulation covering a second longitudinal portion of the conductor, said second portion having a substantially greater length than said first portion of the conductor; and an inside continuous surface free of cutting edges to engage both said first and second portions of the conductor after the insulation has been removed therefrom.
Claim 19
Dependent Claim 142 words
A unitary sheet metal contact member for interconnection with an insulation-covered conductor comprising an active contact element and an insulation-piercing terminal element, said terminal element having two spaced and generally parallel and substantially planar side walls, each said wall including: an outwardly extending insulation-cutting flange integral with a first lateral edge of said side wall to radially penetrate the insulation covering a first longitudinal portion of the conductor; an insulation-stripping edge inclined in a conductor-insertion direction away from said first edge and toward a second lateral edge to incrementally strip the insulation covering a second longitudinal portion of the conductor, said second portion having a substantially greater length than said first portion of the conductor; and an inside continuous surface free of cutting edges to engage both said first and second portions of the conductor after the insulation has been removed therefrom.

References Cited (Backward Citations)

US3233206A Cited
US3895852A Cited
US3926498A Cited
US3874762A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-09-11 1982-03-13 1982-09-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-09-11 1986-03-13 1986-09-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-09-11 1990-03-13 1990-09-12 $7700.00 Window Closed / Lapsed

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