US4761906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firearm safety device
Assignee: Individual
•
Filing: 1987-02-20
•
Granted: 1988-08-09
•
Expires: 2007-02-20
Abstract
Abstract A device is disclosed which disables a firearm from being loaded or fired. A firing-pin-blocking object is held in a space between a firearm firing pin and associated cartridge firing chamber. The pin-blocking object is adjustably attached to a rod which extends into a channel existing in the firearm. Typically, this channel is a pistol magazine chamber or a cartridge chamber of a cylinder. A block is lockably attached to an opposite end of the rod to hold the object in place adjacent the firing pin.
Inventors
- 👤 Michael G. Guevara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:41
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/44; F41A17/34; F41A17/36; F41A17/74
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
180 words
A firearm safety device usable on a firearm having an externally exposable space between a cartridge firing chamber and associated firing pin, including a revolvable cylinder with a plurality of cartridge chambers each of which chambers is movable between a loading position in which both ends of the chamber are exposed and a firing position in which the chamber is disposed adjacent the firing pin in which position it functions as the firing chamber, said device comprising: plate means disposable in the space between the firing pin and cylinder for mechanically isolating the firing pin from the firing chamber; a pair of bar members sized to be received in cartridge chambers, attached at mutually spaced locations to said plate means, and extending from a common side of said plate means; means for adjusting the distance on said plate means between said bar members to permit positioning of said bar members in differently spaced cartridge chambers; and means for releasably locking one of said bar members to a cylinder with said bar members disposed in respective ones of such cartridge chambers.
Claim 2
Dependent Claim
180 words
A firearm safety device usable on a firearm having an externally exposable space between a cartridge firing chamber and associated firing pin, including a revolvable cylinder with a plurality of cartridge chambers each of which chambers is movable between a loading position in which both ends of the chamber are exposed and a firing position in which the chamber is disposed adjacent the firing pin in which position it functions as the firing chamber, said device comprising: plate means disposable in the space between the firing pin and cylinder for mechanically isolating the firing pin from the firing chamber; a pair of bar members sized to be received in cartridge chambers, attached at mutually spaced locations to said plate means, and extending from a common side of said plate means; means for adjusting the distance on said plate means between said bar members to permit positioning of said bar members in differently spaced cartridge chambers; and means for releasably locking one of said bar members to a cylinder with said bar members disposed in respective ones of such cartridge chambers.
Claim 3
Dependent Claim
58 words
The device according to claim 1 wherein said adjusting means includes a slot disposed in said plate means and means for slidably retaining an end of a first of said bar members in said slot, said slot being disposed to allow movement of said end of said first bar member toward and away from the second bar member.
Claim 4
Dependent Claim
82 words
The device according to claim 2 wherein said adjusting means further includes a recessed shoulder extending around said slot, and said means for slidably retaining said first bar member end includes a pin attached to said first bar member having a neck sized to extend slidably in said slot and a cap disposed on said neck distally from said first bar member, said cap being sized to ride on said recessed shoulder and being large enough to prevent passage through said slot.
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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) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |