US3767975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switching device and circuit board therefor
Assignee: Individual
•
Filing: 1972-06-29
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Granted: 1973-10-23
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Expires: 1992-06-29
Abstract
Abstract A switching device which includes a housing in which a plurality of circuit boards are mounted for transverse movement into and out of operative position. A circuit board actuator is mounted in the housing and movable therealong to positions at which it is engageable with selected ones of the circuit boards for moving the circuit boards. Each circuit board has contacts which are engageable with contacts in the housing and means interconnecting selected circuit board contacts. Each circuit board includes a plate-like body with spaced conductive strips on both faces thereof terminating at a contact edge thereof.
Inventors
- 👤 A Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:28
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H05; H05K; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
235 words
A circuit board for a switching device which comprises a plate-like body, spaced strips of conductive material on each face of the body, the strips terminating in contact portions at a contact edge of the body, the strips on one face of the body being parallel, each of the strips on the other face of the body being angle shaped and including a first section parallel to the strips on the first face and a second section extending to one side of the strips on the first face, a sheet of dielectric material overlying the conductive strips on the first face of the body, spaced conductive strips on the sheet extending transversely of the conductive strips on the body face underlying the sheet, each of the strips on the sheet overlying all of the strips on the first face and having a section over-lying the sidewise extending section of one of the angle shaped strips on the other face of the body, means connecting each of the conductivE strips on the other face of the body with one of the conductive strips of the sheet at the overlying sections thereof, and means connecting selected conductive strips on the sheet with selected conductive strips on the underlying face at the overlying sections thereof, whereby selected conductive strips on one face of the body are connected to selected conductive strips on the other face of the body.
Claim 2
Dependent Claim
235 words
A circuit board for a switching device which comprises a plate-like body, spaced strips of conductive material on each face of the body, the strips terminating in contact portions at a contact edge of the body, the strips on one face of the body being parallel, each of the strips on the other face of the body being angle shaped and including a first section parallel to the strips on the first face and a second section extending to one side of the strips on the first face, a sheet of dielectric material overlying the conductive strips on the first face of the body, spaced conductive strips on the sheet extending transversely of the conductive strips on the body face underlying the sheet, each of the strips on the sheet overlying all of the strips on the first face and having a section over-lying the sidewise extending section of one of the angle shaped strips on the other face of the body, means connecting each of the conductivE strips on the other face of the body with one of the conductive strips of the sheet at the overlying sections thereof, and means connecting selected conductive strips on the sheet with selected conductive strips on the underlying face at the overlying sections thereof, whereby selected conductive strips on one face of the body are connected to selected conductive strips on the other face of the body.
Claim 3
Dependent Claim
56 words
A circuit board as in claim 1 wherein the sheet is provided with perforations extending through the conductive strips of the sheet and opposite the conductive strips on the underlying face of the body, and pins in selected perforations form the connections between conductive strips of the sheet and of the underlying face of the body.
Claim 4
Dependent Claim
44 words
A circuit board as in claim 1 wherein a head is provided at an edge of the body opposed to the contact edge for engagement by board actuating means and that shoulder means is provided on the head engageable by the board retracting means.
Claim 5
Dependent Claim
25 words
A circuit board as in claim 1 wherein exposed faces of end portions of the conductive strips adjacent the contact edge are formed of palladium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |