Patent US3776138A successfully refreshed from Google Patents.
US3776138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ganged arming device
Assignee: United States Department of the Army
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Filing: 1972-01-07
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Granted: 1973-12-04
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Expires: 1992-01-07
Abstract
Abstract A plurality of detonators are separated from confined detonating fuses by a rotating, cylindrical shield. A gravity operating device causes this shield to rotate upon acceleration so as to align holes in the shield with the detonators and the fuses.
Inventors
- 👤 S Moses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:43
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/24; F42C15/34; F42C19/00; F42C19/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A safe and arming device having a housing, a plurality of detonator means inclosed therein, a corresponding number of detonation responsive initiator means each aligned respectively with one of said detonator means, shielding means having holes therein, said shielding means being moveably mounted between said detonator means and said initiator means so that its holes can be selectively aligned between the respective individual detonator means and the initiator means, means for moving said shield means, and said shielding means being cylindrical and inclosing said detonator means.
Claim 2
Dependent Claim
86 words
A safe and arming device having a housing, a plurality of detonator means inclosed therein, a corresponding number of detonation responsive initiator means each aligned respectively with one of said detonator means, shielding means having holes therein, said shielding means being moveably mounted between said detonator means and said initiator means so that its holes can be selectively aligned between the respective individual detonator means and the initiator means, means for moving said shield means, and said shielding means being cylindrical and inclosing said detonator means.
Claim 3
Dependent Claim
77 words
A device as set forth in claim 1 wherein said means for moving said shield means comprises an arm having a rack portion in engaged relation to a pinion portion of said shielding means, a spring loaded weight attached to said arm so as to move said arm upon acceleration of the device, and an escapement means connected to said weight and said arm in a manner to cause a predetermined delay of movement of said arm.
Claim 4
Dependent Claim
91 words
A device as set forth in claim 2 wherein said housing further contains wiring means connected to said detonator means, a switching means contained in said means for moving said shield, said wiring means being further connected to said switching means whereby in the unaccelerated positions of said device said wires will be in a short circuited condition with respect to the detonator means, and a second spring biased weight connected to said switching means so as to move said switches off their short circuit condition on acceleration of the device.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |