Patent US3812381A successfully refreshed from Google Patents.
US3812381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit board connector with screw fastener
Assignee: Motors Liquidation Co
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Filing: 1973-06-04
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Granted: 1974-05-21
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Expires: 1993-06-04
Abstract
Abstract Two spaced parallel electrical circuit boards are electrically interconnected by a fastener comprising two tubular eyelets one each soldered to a conductive pad on a circuit board, one eyelet telescoping within the other and having a shoulder for establishing the circuit board spacing. The inner eyelet is slotted to allow expansion against the I.D. of the other eyelet. A self-tapping screw is threaded into the inner eyelet to force it against the wall of the other eyelet to establish a firm engagement to securely connect the circuit boards with minimal stress on the circuit boards.
Inventors
- 👤 J Guyton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:15
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H05K7/142; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/52
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
A connector for electrically interconnecting a pair of circuit boards mounted in spaced parallel relationship with a minimum of stress on the circuit boards comprising a first tubular eyelet attached at one end to a conductor on a first circuit board and having a shank portion extending toward a second circuit board, a second tubular eyelet attached at one end to a conductor on the second circuit board and having a shank portion telescopically disposed within the shank portion of the first tubular eyelet, and means for expanding the shank portion of the second eyelet into fixed engagement with the shank portion of the first eyelet comprising a threaded fastener axially screwed into the shank portion of the second eyelet, whereby the circuit boards are securely electrically interconnected.
Claim 2
Dependent Claim
128 words
A connector for electrically interconnecting a pair of circuit boards mounted in spaced parallel relationship with a minimum of stress on the circuit boards comprising a first tubular eyelet attached at one end to a conductor on a first circuit board and having a shank portion extending toward a second circuit board, a second tubular eyelet attached at one end to a conductor on the second circuit board and having a shank portion telescopically disposed within the shank portion of the first tubular eyelet, and means for expanding the shank portion of the second eyelet into fixed engagement with the shank portion of the first eyelet comprising a threaded fastener axially screwed into the shank portion of the second eyelet, whereby the circuit boards are securely electrically interconnected.
Claim 3
Dependent Claim
47 words
A connector as defined in claim 1 wherein one of the shank portions includes a shoulder engaging the end of the other shank portion for limiting the extent of telescopic insertion of the shank portion of the second eyelet, thereby fixing the spacing between the circuit boards.
Claim 4
Dependent Claim
182 words
A connector for electrically interconnecting a pair of circuit boards mounted in spaced parallel relationship with a minimum of stress on the circuit boards comprising a first tubular eyelet attached at one end to a conductor on a first circuit board and having a shank portion extending toward a second circuit board, a second tubular eyelet attached at one end to a conductor on the second circuit board and having a shank portion extending toward the first circuit board, the shank portion of the second eyelet having a shoulder portion intermediate its ends for axial engagement with the shank portion of the first eyelet and having a terminal portion of reduced cross section inserted Into the shank portion of the first eyelet, the terminal portion being longitudinally slotted to facilitate expansion thereof against the shank portion of the second eyelet, and a threaded fastener means inserted within the second eyelet and axially screwed into the terminal portion thereof for expanding the terminal portion into fixed engagement with the shank portion of the first eyelet, whereby the circuit boards are securely electrically interconnected.
Claim 5
Dependent Claim
182 words
A connector for electrically interconnecting a pair of circuit boards mounted in spaced parallel relationship with a minimum of stress on the circuit boards comprising a first tubular eyelet attached at one end to a conductor on a first circuit board and having a shank portion extending toward a second circuit board, a second tubular eyelet attached at one end to a conductor on the second circuit board and having a shank portion extending toward the first circuit board, the shank portion of the second eyelet having a shoulder portion intermediate its ends for axial engagement with the shank portion of the first eyelet and having a terminal portion of reduced cross section inserted Into the shank portion of the first eyelet, the terminal portion being longitudinally slotted to facilitate expansion thereof against the shank portion of the second eyelet, and a threaded fastener means inserted within the second eyelet and axially screwed into the terminal portion thereof for expanding the terminal portion into fixed engagement with the shank portion of the first eyelet, whereby the circuit boards are securely electrically interconnected.
Claim 6
Dependent Claim
59 words
A connector as described in claim 3 wherein the circuit boards have aligned apertures for receiving the respective eyelets, the conductor on each circuit board having a conductive pad surrounding the aperture on that circuit board, and each eyelet having an outwardly flared flange at its said one end soldered to the conductive pad on its respective circuit board.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |