US3372253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-disturbance switch
Assignee: United States Department of the Army
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Filing: 1958-05-19
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Granted: 1968-03-05
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Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 James L Baker
- 👤 Laurence M Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/06; F42C1/00; F42C1/02; F42C1/04; F42C1/06; F42C11/00; F42C11/001; F42C11/007; H; H01; H01H; H01H35/00; H01H35/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
AN ANTI-DISTURBANCE SWITCH COMPRISING: A HOLLOW METALLIC CYLINDRICAL SHELL HAVING A SERIES OF EQUI-SPACED, INWARDLY PROJECTING CONVEX WALL SEGMENTS SPACED AROUND THE SHELL CIRCUMFERENCE, SAID CONVEX SEGMENTS AND SAID SHELL FORMING A SERIES OF CAVITIES BETWEEN SUCCESSIVE CONVEX WALL SEGMENTS, UPPER AND LOWER TAPERED DISKS PROVIDING CLOSURES FOR THE END OF SAID SHELL, SAID DISKS COMPOSED OF AN INSULATING MATERIAL WITH SURFACES TAPERING TOWARDS THE SHELL CENTER, A SPUR GEAR IN SAID DISK WITH TOOTH SURFACES GROUND PLANAR WITH THE TAPERED SURFACES OF SAID DISKS, THE OUTERMOST EXTREMITY OF EACH TOOTH EXTENDING ADJACENT AND OPPOSITE THE INNERMOST SURFACE OF A CORRESPONDING WALL SEGMENT, SAID GEAR AND SHELL ACTING AS ELECTRICAL CONDUCTORS SEPARATED BY THE INSULATION OF SAID DISKS, A METALLIC SPHERE IN SAID SHELL, THE TAPERED DISKS AND CONVEX WALL SEGMENTS CAUSING SAID SPHERE TO REST IN A CAVITY WHEN THE SWITCH IS AT REST, THE DIAMETER OF SAID SPHERE BEING SMALL ENOUGH SO THAT THE SPHERE MAKES NO ELECTRICAL CONTACT BETWEEN SAID CONVEX WALL SEGMENTS AND THE TEETH OF SAID GEAR, SAID SPHERE
Claim 2
Dependent Claim
174 words
AN ANTI-DISTURBANCE SWITCH COMPRISING: A HOLLOW METALLIC CYLINDRICAL SHELL HAVING A SERIES OF EQUI-SPACED, INWARDLY PROJECTING CONVEX WALL SEGMENTS SPACED AROUND THE SHELL CIRCUMFERENCE, SAID CONVEX SEGMENTS AND SAID SHELL FORMING A SERIES OF CAVITIES BETWEEN SUCCESSIVE CONVEX WALL SEGMENTS, UPPER AND LOWER TAPERED DISKS PROVIDING CLOSURES FOR THE END OF SAID SHELL, SAID DISKS COMPOSED OF AN INSULATING MATERIAL WITH SURFACES TAPERING TOWARDS THE SHELL CENTER, A SPUR GEAR IN SAID DISK WITH TOOTH SURFACES GROUND PLANAR WITH THE TAPERED SURFACES OF SAID DISKS, THE OUTERMOST EXTREMITY OF EACH TOOTH EXTENDING ADJACENT AND OPPOSITE THE INNERMOST SURFACE OF A CORRESPONDING WALL SEGMENT, SAID GEAR AND SHELL ACTING AS ELECTRICAL CONDUCTORS SEPARATED BY THE INSULATION OF SAID DISKS, A METALLIC SPHERE IN SAID SHELL, THE TAPERED DISKS AND CONVEX WALL SEGMENTS CAUSING SAID SPHERE TO REST IN A CAVITY WHEN THE SWITCH IS AT REST, THE DIAMETER OF SAID SPHERE BEING SMALL ENOUGH SO THAT THE SPHERE MAKES NO ELECTRICAL CONTACT BETWEEN SAID CONVEX WALL SEGMENTS AND THE TEETH OF SAID GEAR, SAID SPHERE
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |