Patent US4105208A successfully refreshed from Google Patents.
Patent US4224753A successfully refreshed from Google Patents.
US4224753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for firearms
Assignee: Individual
•
Filing: 1978-08-04
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Granted: 1980-09-30
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Expires: 1998-08-04
Abstract
Abstract A safety device for firearms includes a dummy cartridge adapted to be seated in the chamber of the barrel. An elongated rod is threaded into the nose of the bullet end of the dummy cartridge. A muzzle cap is attached to the other end of the rod and is seated in and closes the muzzle. The muzzle cap is adapted to be engaged by a hand tool thereby to unthread the rod from the dummy cartridge to permit removal of the rod and muzzle cap from the muzzle of the firearm and the dummy cartridge from the chamber. A porous sleeve impregnated with a material which emits a rust inhibiting vapor may be placed on the rod between the dummy cartridge and the muzzle cap.
Inventors
- 👤 Thomas F. Bielman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:16
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/44
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
178 words
A safety device for a firearm including a barrel having a muzzle end and a cartridge-receiving chamber at the opposite end, and a firing pin, comprising: a dummy cartridge adapted to be seated in said chamber and having a bullet nose end and a rim end; an elongated rod element having opposite ends and adapted to extend through said barrel from said muzzle into said chamber; and a muzzle cap element on one end of said rod element and adapted to be seated in and close said muzzle end; said bullet nose end of said dummy cartridge having means for removably receiving the opposite end of said rod element thereby to retain said cap element in said muzzle, said receiving means comprising an elongated retainer member having opposite ends with one end seated in an opening in said nose end and its other end extending through an opening in said rim end and being secured therein, said one end of said retainer member having a threaded opening therein for threadedly receiving said opposite end of said rod element.
Claim 2
Dependent Claim
178 words
A safety device for a firearm including a barrel having a muzzle end and a cartridge-receiving chamber at the opposite end, and a firing pin, comprising: a dummy cartridge adapted to be seated in said chamber and having a bullet nose end and a rim end; an elongated rod element having opposite ends and adapted to extend through said barrel from said muzzle into said chamber; and a muzzle cap element on one end of said rod element and adapted to be seated in and close said muzzle end; said bullet nose end of said dummy cartridge having means for removably receiving the opposite end of said rod element thereby to retain said cap element in said muzzle, said receiving means comprising an elongated retainer member having opposite ends with one end seated in an opening in said nose end and its other end extending through an opening in said rim end and being secured therein, said one end of said retainer member having a threaded opening therein for threadedly receiving said opposite end of said rod element.
Claim 3
Dependent Claim
80 words
The device of claim 1 wherein said other end of said retainer member has an opening therein, said opening having a bottom, and further comprising a resilient shock absorber element seated in said retainer member opening against said bottom thereof, and a plunger member in said retainer member opening and having opposite ends with one end engaging said shock absorber element and the other end being a dummy cap adapted to be struck by the firing pin of said firearm.
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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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |