Patent US3678609A successfully refreshed from Google Patents.
US3678609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety plug for firearms
Assignee: Individual
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Filing: 1970-06-25
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Granted: 1972-07-25
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Expires: 1990-06-25
Abstract
Abstract A safety plug for insertion into the chamber of a firearm, such as a pistol, shotgun, or rifle, constructed from a single piece of flexible material and adapted for frictionally engaging the chamber walls of the firearm. In a preferred embodiment, the invention includes a plug having longitudinal ribs which engage the walls of the chamber while permitting the chamber and barrel to be ventilated.
Inventors
- 👤 Joseph Fazio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:17
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
A safety plug for insertion into the chamber of a firearm, comprising: a body portion; and a plurality of longitudinally extending rib means, integrally formed on said body portion, for frictional engagement with the chamber wall of said firearm, and having grooves formed on the ends of said rib means and extending longitudinally with respect to said body portion of the safety plug, said body portion also including open channels between said extending rib means for permitting ventilation of the firearm.
Claim 2
Dependent Claim
81 words
A safety plug for insertion into the chamber of a firearm, comprising: a body portion; and a plurality of longitudinally extending rib means, integrally formed on said body portion, for frictional engagement with the chamber wall of said firearm, and having grooves formed on the ends of said rib means and extending longitudinally with respect to said body portion of the safety plug, said body portion also including open channels between said extending rib means for permitting ventilation of the firearm.
Claim 3
Dependent Claim
20 words
The safety plug as recited in claim 1 wherein said channels are circularly concave surfaces disposed between said rib means.
Claim 4
Dependent Claim
21 words
The safety plug as recited in claim 1 wherein said ventilation channels are rectangularly shaped passageways between said extending rib means.
Claim 5
Dependent Claim
115 words
A safety plug for insertion into the chamber of a firearm, comprising: a body portion; a plurality of longitudinally extending rib means, integrally formed on said body portion, for frictional engagement with the chamber wall of said firearm, said body portion including open channels between said extending rib means for permitting ventilation of the firearm; a tapered rib portion, integrally formed on one end of said body portion; and a nose rib portion, integrally formed on said tapered rib portion, for extending into the barrel of the firearm, said tapered rib portion and said nose rib portion including grooves formed on the ends thereof and extending longitudinally along said tapered rib and nose rib portions.
Claim 6
Dependent Claim
115 words
A safety plug for insertion into the chamber of a firearm, comprising: a body portion; a plurality of longitudinally extending rib means, integrally formed on said body portion, for frictional engagement with the chamber wall of said firearm, said body portion including open channels between said extending rib means for permitting ventilation of the firearm; a tapered rib portion, integrally formed on one end of said body portion; and a nose rib portion, integrally formed on said tapered rib portion, for extending into the barrel of the firearm, said tapered rib portion and said nose rib portion including grooves formed on the ends thereof and extending longitudinally along said tapered rib and nose rib portions.
Claim 7
Dependent Claim
22 words
The safety plug as recited in claim 4 wherein said open channels extend longitudinally between said tapered rib and nose rib portions.
Claim 8
Dependent Claim
25 words
The safety plug as recited in claim 5 wherein the ends of said rib means include rounded surfaces conforming to the chamber of the firearm.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |