Patent US3145494A successfully refreshed from Google Patents.
US3145494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muzzle-triggered gun
Assignee: Individual
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Filing: 1963-07-22
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Granted: 1964-08-25
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Charles E Willcox
- 👤 Donald G Setty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:41
CPC Classifications
F; F41; F41C; F41C9/00; F41C9/06; F41A; F41A19/00; F41A19/06; F41A19/25; F41A19/27; F41A19/29; F41A19/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A GUN TRIGGERED BY MUZZLE CONTACT, WHICH GUN INCLUDES: A BREECH BLOCK MEMBER HAVING AN AXIAL FIRING PIN MEANS AND A REARWARDLY PROJECTING SLEEVE; A PISTON HOUSING TELESCOPICALLY RECEIVED INTO SAID SLEEVE; A PISTON RECIPROCABLE WITHIN SAID PISTON HOUSING; A SPRING WITHIN SAID PISTON HOUSING URGING SAID PISTON TOWARDS SAID FIRING PIN MEANS; A FIRING TUBE MEANS ON THE FORWARD END OF SAID BREECH BLOCK MEMBER; A PISTON-RETAINING LATCH MOUNTED ON SAID PISTON HOUSING REARWARD OF SAID SLEEVE, AND LOCATED TO HOLD SAID SPRING IN A CONDITION OF COMPRESSION; A LATCH CAM ON SAID LATCH HAVING A CAMMING SURFACE EXTENDING FORWARDLY AT AN ANGLE WITH RESPECT TO THE AXIS OF SAID TELESCOPING SLEEVE AND PISTON HOUSING; AND A MATING BREECH BLOCK CAMMING SURFACE ON SAID BREECH BLOCK MEMBER FORMED TO MOVE SAID LATCH CAM OUT OF LATCHING ENGAGEMENT WITH SAID PISTON WHEN SAID BREECH BLOCK MEMBER IS TELESCOPED REARWARDLY OVER SAID PISTON HOUSING, WHEREBY SAID PISTON IS RELEASED, AND DRIVEN BY SAID SPRING, AGAINST SAID FIRING PIN MEANS.
Claim 2
Dependent Claim
168 words
A GUN TRIGGERED BY MUZZLE CONTACT, WHICH GUN INCLUDES: A BREECH BLOCK MEMBER HAVING AN AXIAL FIRING PIN MEANS AND A REARWARDLY PROJECTING SLEEVE; A PISTON HOUSING TELESCOPICALLY RECEIVED INTO SAID SLEEVE; A PISTON RECIPROCABLE WITHIN SAID PISTON HOUSING; A SPRING WITHIN SAID PISTON HOUSING URGING SAID PISTON TOWARDS SAID FIRING PIN MEANS; A FIRING TUBE MEANS ON THE FORWARD END OF SAID BREECH BLOCK MEMBER; A PISTON-RETAINING LATCH MOUNTED ON SAID PISTON HOUSING REARWARD OF SAID SLEEVE, AND LOCATED TO HOLD SAID SPRING IN A CONDITION OF COMPRESSION; A LATCH CAM ON SAID LATCH HAVING A CAMMING SURFACE EXTENDING FORWARDLY AT AN ANGLE WITH RESPECT TO THE AXIS OF SAID TELESCOPING SLEEVE AND PISTON HOUSING; AND A MATING BREECH BLOCK CAMMING SURFACE ON SAID BREECH BLOCK MEMBER FORMED TO MOVE SAID LATCH CAM OUT OF LATCHING ENGAGEMENT WITH SAID PISTON WHEN SAID BREECH BLOCK MEMBER IS TELESCOPED REARWARDLY OVER SAID PISTON HOUSING, WHEREBY SAID PISTON IS RELEASED, AND DRIVEN BY SAID SPRING, AGAINST SAID FIRING PIN MEANS.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |