US3883977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rifle
Assignee: Lee Raymond Organization Inc
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Filing: 1973-09-17
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Granted: 1975-05-20
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Expires: 1993-09-17
Abstract
Abstract A rifle comprises a rifle barrel having a muzzle end and a breech end having a substantially tapered surface tapering toward the breech end as it extends radially outward. The breech end also has an externally threaded hollow cylindrical axial projection adapted to be threadedly coupled in the internally threaded firing chamber of the receiver of the rifle. This permits different caliber rifle barrels to be removably mounted on the same receiver.
Inventors
- 👤 Samuel A Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:20
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/48; F41A21/487; F41A21/482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A rifle having a receiver having an internally threaded firing chamber and a substantially planar end surface, the firing chamber opening into the end surface, said rifle comprising A RIFLE BARREL HAVING A MUZZLE END AND A BREECH END HAVING A SUBSTANTIALLY TAPERED SURFACE TAPERING TOWARD THE BREECH END AS IT EXTENDS RADIALLY OUTWARD AND AN EXTERNALLY THREADED HOLLOW CYLINDRICAL AXIAL PROJECTION ADAPTED TO BE THREADEDLY COUPLED IN THE FIRING CHAMBER THEREBY PERMITTING DIFFERENT CALIBER RIFLE BARRELS TO BE REMOVABLY MOUNTED ON THE SAME RECEIVER; AND A SPLIT RING ADAPTED TO BE MOUNTED ON THE PROJECTION OF THE RIFLE BARREL AND INTERPOSED BETWEEN AND ABUTTING THE BREECH END OF THE RIFLE BARREL AND THE END SURFACE OF THE RECEIVER THEREBY ALIGNING THE BARREL IN THE RECEIVER, ONE AXIAL SURFACE OF THE SPLIT RING BEING TAPERED IN CORRESPONDENCE WITH THE BREECH END OF THE RIFLE BARREL AND THE OTHER AXIAL SURFACE OF THE SPLIT RING BEING SUBSTANTIALLY PLANAR IN CORRESPONDENCE WITH THE PLANAR SURFACE OF THE RECEIVER, THE SPLIT RING HAVING A SMOOTH INNER SURFACE, AND FURTHER COMPRISING BOLT MEANS FOR SECURING THE FREE ENDS OF THE SPLIT RING TO EACH OTHER TO TIGHTEN THE SPLIT RING IN POSITION.
Claim 2
Dependent Claim
198 words
A rifle having a receiver having an internally threaded firing chamber and a substantially planar end surface, the firing chamber opening into the end surface, said rifle comprising A RIFLE BARREL HAVING A MUZZLE END AND A BREECH END HAVING A SUBSTANTIALLY TAPERED SURFACE TAPERING TOWARD THE BREECH END AS IT EXTENDS RADIALLY OUTWARD AND AN EXTERNALLY THREADED HOLLOW CYLINDRICAL AXIAL PROJECTION ADAPTED TO BE THREADEDLY COUPLED IN THE FIRING CHAMBER THEREBY PERMITTING DIFFERENT CALIBER RIFLE BARRELS TO BE REMOVABLY MOUNTED ON THE SAME RECEIVER; AND A SPLIT RING ADAPTED TO BE MOUNTED ON THE PROJECTION OF THE RIFLE BARREL AND INTERPOSED BETWEEN AND ABUTTING THE BREECH END OF THE RIFLE BARREL AND THE END SURFACE OF THE RECEIVER THEREBY ALIGNING THE BARREL IN THE RECEIVER, ONE AXIAL SURFACE OF THE SPLIT RING BEING TAPERED IN CORRESPONDENCE WITH THE BREECH END OF THE RIFLE BARREL AND THE OTHER AXIAL SURFACE OF THE SPLIT RING BEING SUBSTANTIALLY PLANAR IN CORRESPONDENCE WITH THE PLANAR SURFACE OF THE RECEIVER, THE SPLIT RING HAVING A SMOOTH INNER SURFACE, AND FURTHER COMPRISING BOLT MEANS FOR SECURING THE FREE ENDS OF THE SPLIT RING TO EACH OTHER TO TIGHTEN THE SPLIT RING IN POSITION.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |