US3137204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable blank firing attachment for automatic firearms
Assignee: Individual
•
Filing: 1963-05-14
•
Granted: 1964-06-16
•
Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Earle M Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:05
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A BLANK FIRING ATTACHMENT FOR A RECOIL OPERATED FIREARM HAVING A RECIPROCATING BARREL, SAID ATTACHMENT COMPRISING A BLOCK HAVING AN AXIAL ORIFICE THERETHROUGH FOR THE PASSAGE OF THE DISCHARGE GASES PRODUCED BY THE FIRING OF A BLANK CARTRIDGE, MEANS FOR SECURING SAID ATTACHMENT TO THE FIREARM IN AXIAL ALIGNMENT WITH THE MUZZLE END OF THE BARREL, MEANS FOR ADJUSTING THE SIZE OF SAID ORIFICE TO CONTROL THE FLOW OF GASES THERETHROUGH AND THEREBY PROVIDE SUFFICIENT PRESSURE AGAINS THE MUZZLE END OF THE BARREL TO SIMULATE THE ACTION NORMALLY IMPACTED TO THE RECOILING PARTS BY LIVE AMMUNITION, AND MEANS FOR LOCKING SAID GAS CONTROL MEANS IN ANY OF A PLURALITY OF ADJUSTED POSITIONS.
Claim 2
Dependent Claim
112 words
A BLANK FIRING ATTACHMENT FOR A RECOIL OPERATED FIREARM HAVING A RECIPROCATING BARREL, SAID ATTACHMENT COMPRISING A BLOCK HAVING AN AXIAL ORIFICE THERETHROUGH FOR THE PASSAGE OF THE DISCHARGE GASES PRODUCED BY THE FIRING OF A BLANK CARTRIDGE, MEANS FOR SECURING SAID ATTACHMENT TO THE FIREARM IN AXIAL ALIGNMENT WITH THE MUZZLE END OF THE BARREL, MEANS FOR ADJUSTING THE SIZE OF SAID ORIFICE TO CONTROL THE FLOW OF GASES THERETHROUGH AND THEREBY PROVIDE SUFFICIENT PRESSURE AGAINS THE MUZZLE END OF THE BARREL TO SIMULATE THE ACTION NORMALLY IMPACTED TO THE RECOILING PARTS BY LIVE AMMUNITION, AND MEANS FOR LOCKING SAID GAS CONTROL MEANS IN ANY OF A PLURALITY OF ADJUSTED POSITIONS.
References Cited (Backward Citations)
US2330210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |