US3728937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas fired caseless ammunition rifle
Assignee: Individual
•
Filing: 1971-04-30
•
Granted: 1973-04-24
•
Expires: 1991-04-30
Abstract
Abstract A caseless ammunition, bolt action, rifle charged with gas and fired electrically. The firing chamber is sealed with a truncated cone insert, having thin walls which are contracted around the bolt by gas pressure, to seal against back pressure leakage.
Inventors
- 👤 A Scibor
- 👤 B Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
In a rifle having a barrel, breech block, stock, hand grip and trigger assembly, the combination of a firing chamber in said breech block, means to seal said firing chamber against back pressure, means to feed caseless bullets to said barrel, a first compressed gas chamber, means to conduct gas from said first gas chamber to said firing chamber, a second compressed gas chamber in communication with said firing chamber, means to control the flow of gas from each of said gas chambers, and means to fire the mixture of gases in said firing chamber, to eject the bullets from said barrel, in which the means to seal said firing chamber include a truncated cone insert received therein, said cone having thin walls arranged to be compressed about the bullet feed means to seal the area around said feed means against gas leakage, upon firing the gas mixture in said firing chamber.
Claim 2
Dependent Claim
152 words
In a rifle having a barrel, breech block, stock, hand grip and trigger assembly, the combination of a firing chamber in said breech block, means to seal said firing chamber against back pressure, means to feed caseless bullets to said barrel, a first compressed gas chamber, means to conduct gas from said first gas chamber to said firing chamber, a second compressed gas chamber in communication with said firing chamber, means to control the flow of gas from each of said gas chambers, and means to fire the mixture of gases in said firing chamber, to eject the bullets from said barrel, in which the means to seal said firing chamber include a truncated cone insert received therein, said cone having thin walls arranged to be compressed about the bullet feed means to seal the area around said feed means against gas leakage, upon firing the gas mixture in said firing chamber.
References Cited (Backward Citations)
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US1290596A
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US1596057A
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Cited
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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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |