Patent US3761867A successfully refreshed from Google Patents.
US3761867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation and oxide piercing contact means
Assignee: ABB Installation Products Inc
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Filing: 1972-01-19
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Granted: 1973-09-25
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Expires: 1992-01-19
Abstract
Abstract Contact means for improving the contact between acjacent conductive members comprising a substantially flat, multiple toothed member having a selectively proportioned slotted aperture arranged to permit the contact means to be disposed about a binding post or similar fastening element. The toothed projections which may be disposed on at least a portion of either one or both surfaces of the contact means are selectively dimensioned to bit into and engage the adjacent conductive surface of one or more conductors urged thereagainst as the contact means is interposed between the conductor and the adjacent conductive member. The contact means may be formed either as discrete, single apertured members, or as multiapertured members wherein the apertures are selectively spaced preferably to bridge two or more adjacently disposed binding posts or the like. The contact means may be provided in strip form and selectively scored or recessed to enable convenient separation of the interconnected members.
Inventors
- 👤 J Churla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2475; H01R4/2479; H01R4/26; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S439/00; Y10S439/927
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
Insulation and oxide piercing contact means comprising: a body member formed of flat electrically conducting metallic material and having a first surface and a second surface, said surfaces defining the thickness of said body member, at least one smoothly contoured outer edge, at least one selectively proportioned aperture extending between said first and said second surfaces, at least one smoothly contoured inner edge at least partially defining the periphery of said aperture, and at least one restrictively proportioned slot extending between and communicating with its associated aperture and at least a portion of said outer edge of said body member; and a plurality of discrete, generally sharply pointed protrusions having a predetermined length and extending outwardly generally normal to the plane of said body member, said protrusions being disposed generally uniformly over substantially the entire area defined by at least one of said first and said second surfaces, said protrusions being confined solely to the area intermediate but not including said inner edge and said outer edge of said body member and arranged in such close proximate relationship one to another as to penetrate the outer surface of and selectively engage the interior of a conductor impaled on said protrusions to provide intimate electrical contact between said body member and such conductor.
Claim 2
Dependent Claim
212 words
Insulation and oxide piercing contact means comprising: a body member formed of flat electrically conducting metallic material and having a first surface and a second surface, said surfaces defining the thickness of said body member, at least one smoothly contoured outer edge, at least one selectively proportioned aperture extending between said first and said second surfaces, at least one smoothly contoured inner edge at least partially defining the periphery of said aperture, and at least one restrictively proportioned slot extending between and communicating with its associated aperture and at least a portion of said outer edge of said body member; and a plurality of discrete, generally sharply pointed protrusions having a predetermined length and extending outwardly generally normal to the plane of said body member, said protrusions being disposed generally uniformly over substantially the entire area defined by at least one of said first and said second surfaces, said protrusions being confined solely to the area intermediate but not including said inner edge and said outer edge of said body member and arranged in such close proximate relationship one to another as to penetrate the outer surface of and selectively engage the interior of a conductor impaled on said protrusions to provide intimate electrical contact between said body member and such conductor.
Claim 3
Dependent Claim
54 words
Contact means as defined in claim 1 wherein said body member has at least two apertures in selectively spaced arrangement extending between said first and said second surfaces thereof, and at least two slots, each extending between and communicating with its associated aperture and a portion of said outer edge of said body member.
Claim 4
Dependent Claim
39 words
Contact means as defined in claim 2 further comprising separating means disposed on said body member and aligned to facilitate the separation of said body member into discrete contact means each having a single aperture and an associated slot.
Claim 5
Dependent Claim
29 words
Contact means as defined in claim 3 wherein said separating means comprises a generally transversely extending recessed portion having a depth selectively proportioned to provide a frangible zone thereat.
Claim 6
Dependent Claim
43 words
Contact means as defined in claim 2 further comprising separating means disposed on said body member and aligned to facilitate the separation of said body member into discrete contacts each having at least a pair of said apertures and their respective associated slots.
Claim 7
Dependent Claim
29 words
Contact means as defined in claim 5 wherein said separating means comprises a generally transversely extending recessed portion having a depth selectively proportioned to provide a frangible zone thereat.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |