US3760330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated common strip
Assignee: AG Communication Systems Corp
•
Filing: 1972-03-31
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Granted: 1973-09-18
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Expires: 1992-03-31
Abstract
Abstract An insulated common strip for selectively coupling electrical components to the circuits of a printed wiring card. A selftapping screw is used to close an electrical path between first and second pretensioned spring conductors mounted on an insulating block and coupled to the printed circuits.
Inventors
- 👤 J Bennett
- 👤 A Wenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:06
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/70; H01R12/71; H01R12/712; H01R12/714
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
Apparatus for selectively coupling electrical circuits comprising an electrically insulative mounting block, at least one pair of electrically conductive spring members disposed circumferentially about said mounting block, spaced apart from one another, each having one end extending a selected distance from the surface of said mounting block, and each adapted for coupling to one of said electrical circuits to be coupled said mounting block having an aperture disposed between said conductive spring members, and an electrically conductive screw threaded into said aperture such that tightening said screw closes an electrical path through the head thereof between said spring members.
Claim 2
Dependent Claim
99 words
Apparatus for selectively coupling electrical circuits comprising an electrically insulative mounting block, at least one pair of electrically conductive spring members disposed circumferentially about said mounting block, spaced apart from one another, each having one end extending a selected distance from the surface of said mounting block, and each adapted for coupling to one of said electrical circuits to be coupled said mounting block having an aperture disposed between said conductive spring members, and an electrically conductive screw threaded into said aperture such that tightening said screw closes an electrical path through the head thereof between said spring members.
Claim 3
Dependent Claim
35 words
Apparatus as recited in claim 1 further including a spring retaining slot disposed in the surfaces of said mounting block for each said conductive spring member and adapted to retain and align said spring members.
Claim 4
Dependent Claim
29 words
Apparatus as recited in claim 1 further including a plurality of spacing tabs integrally formed on the surface of said mounting block from which said conductive spring members extend.
Claim 5
Dependent Claim
34 words
Apparatus as recited in claim 1 wherein said mounting block is provided with a plurality of apertures having openings on each surface of said mounting block between the spring members of each said pair.
Claim 6
Dependent Claim
22 words
Apparatus as recited in claim 2 wherein each said spring member is formed of spring temper wire having A substantially rectangular cross-section.
Claim 7
Dependent Claim
44 words
Apparatus as recited in claim 5 wherein each said spring member is disposed on said mounting block under tension such as to assume an external convex configuration extending beyond the surface of said mounting block whereby said conductive screw compresses said springs when tightened.
Claim 8
Dependent Claim
57 words
Apparatus as recited in claim 1 further including a printed wiring card bearing said electrical circuits to be selectively coupled, and each said circuit being terminated about an aperture through said wiring card, each said aperture being adapted to receive and electrically engage the portion of said spring member extending beyond the surface of said mounting block.
Claim 9
Dependent Claim
53 words
Apparatus as recited in claim 7 further including an access aperture disposed through said wiring card, of a dimension greater than the spacing between said spring members and in register with the space therebetween, whereby said conductive screw inserted through said aperture operates to selectively close the electrical path between said spring members.
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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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |