Patent US3738273A successfully refreshed from Google Patents.
US3738273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-arming device
Assignee: United States Department of the Navy
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Filing: 1960-09-29
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Granted: 1973-06-12
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Expires: 1980-09-29
Abstract
Abstract 1. In a switch actuating means, the combination comprising an acceleration sensitive weight displaced in proportion to an accelerating force applied to said acceleration sensitive weight, a flywheel drivingly coupled to said acceleration sensitive weight and being driven in response to motion of said acceleration weight, a normally open switch having a movable contact bearing member, gear means coupling said contact bearing member to said flywheel and being actuated to close said switch by the momentum of said flywheel after the acceleration force is no longer applied to said weight.
Inventors
- 👤 W Hoelzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:01
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
In a switch actuating means, the combination comprising an acceleration sensitive weight displaced in proportion to an accelerating force applied to said acceleration sensitive weight, a flywheel drivingly coupled to said acceleration sensitive weight and being driven in response to motion of said acceleration weight, a normally open switch having a movable contact bearing member, gear means coupling said contact bearing member to said flywheel and being actuated to close said switch by the momentum of said flywheel after the acceleration force is no longer applied to said weight.
Claim 2
Dependent Claim
89 words
In a switch actuating means, the combination comprising an acceleration sensitive weight displaced in proportion to an accelerating force applied to said acceleration sensitive weight, a flywheel drivingly coupled to said acceleration sensitive weight and being driven in response to motion of said acceleration weight, a normally open switch having a movable contact bearing member, gear means coupling said contact bearing member to said flywheel and being actuated to close said switch by the momentum of said flywheel after the acceleration force is no longer applied to said weight.
Claim 3
Dependent Claim
14 words
The combination of claim 1 wherein said acceleration sensitive weight is a weighted rack.
Claim 4
Dependent Claim
18 words
The combination of claim 1 wherein said acceleration sensitive weight is a pair of eccentrically weighted, counter-rotating rotors.
Claim 5
Dependent Claim
128 words
In a safety-arming device for use with a guided missile warhead, the combination comprising an acceleration sensitive weight displaced in proportion to acceleration forces applied to said acceleration sensitive weight, a flywheel drivingly coupled to said acceleration sensitive weight and being driven in response to motion of said acceleration weight, a normally open switch having a contact bearing member, gear means coupling said contact bearing member to said flywheel and being actuated to said switch by the momentum of said flywheel after the acceleration force is no longer applied to said weight, and means coupled to said acceleration sensitive weight for returning it to its initial position if said flywheel fails to rotate a predetermined number of revolutions corresponding to a safe travel displacement of said missile warhead.
Claim 6
Dependent Claim
128 words
In a safety-arming device for use with a guided missile warhead, the combination comprising an acceleration sensitive weight displaced in proportion to acceleration forces applied to said acceleration sensitive weight, a flywheel drivingly coupled to said acceleration sensitive weight and being driven in response to motion of said acceleration weight, a normally open switch having a contact bearing member, gear means coupling said contact bearing member to said flywheel and being actuated to said switch by the momentum of said flywheel after the acceleration force is no longer applied to said weight, and means coupled to said acceleration sensitive weight for returning it to its initial position if said flywheel fails to rotate a predetermined number of revolutions corresponding to a safe travel displacement of said missile warhead.
References Cited (Backward Citations)
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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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |