Patent US3964813A successfully refreshed from Google Patents.
US3964813A
Expired / Lapsed
US
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Connector
Assignee: National Aeronautics and Space Administration
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Filing: 1975-02-10
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Granted: 1976-06-22
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Expires: 1995-02-10
Abstract
Abstract A connector for connecting circuits located on different layers of a multilayer printed circuit board through a hole in the board. The connector is a hollow cylindrical conductor made from a conductive, metallic, springy material. A slit in the conductor and a plurality of sharp teeth located on the outside of the conductor extend the full length of the conductor. The conductor has a slightly larger outside diameter than the diameter of the hole. Consequently, when the connector is forced into the hole the springback (resiliency) of the connector forces the teeth against the circuits on the printed circuit board thereby providing a positive connection between the circuits.
Inventors
- 👤 Donald E. Pizzeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:11
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/52; H01R12/523; H05; H05K; H05K3/00; H05K3/40; H05K3/4038; H05K3/4046; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10295; H05K2201/10303; H05K2201/10431; H05K2201/1059; H05K2201/10613; H05K2201/10742; H05K2201/1075; H05K2201/1081; H05K3/30; H05K3/306; H05K3/308
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
A multi-layer printed circuit board having a hole through it with circuits on different layers of the board extending to the periphery of the hole; a connector in said hole for connecting said circuits on different layers of said board comprising: a cylindrical conductor hollow throughout its entire length having an outside diameter slightly larger than the diameter of said hole and made from a conductive, springy material; several teeth on the outside surface of said conductor with each tooth extending the full length of said conductor; and a single slit in said conductor extending the full length of the conductor whereby the springback of said conductor forces said teeth into contact with all of said circuits extending to the periphery of said hole.
Claim 2
Dependent Claim
124 words
A multi-layer printed circuit board having a hole through it with circuits on different layers of the board extending to the periphery of the hole; a connector in said hole for connecting said circuits on different layers of said board comprising: a cylindrical conductor hollow throughout its entire length having an outside diameter slightly larger than the diameter of said hole and made from a conductive, springy material; several teeth on the outside surface of said conductor with each tooth extending the full length of said conductor; and a single slit in said conductor extending the full length of the conductor whereby the springback of said conductor forces said teeth into contact with all of said circuits extending to the periphery of said hole.
Claim 3
Dependent Claim
22 words
A connector according to claim 1 wherein said plurality of teeth are beveled at one end to provide guidance into said hole.
Claim 4
Dependent Claim
16 words
A connector according to claim 1 wherein a cross-section of said teeth is an isosceles triangle.
References Cited (Backward Citations)
US3258730A
Cited
FR1125123A
Cited
US2931003A
Cited
FR1150441A
Cited
US3093887A
Cited
US3774142A
Cited
US3866998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |