US3830002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firing pin safety device for firearms
Assignee: WALTHER C SPORTWAFFENFAB
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Filing: 1973-03-14
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Granted: 1974-08-20
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Expires: 1993-03-14
Abstract
Abstract A hand firearm has a pivotable safety shaft positioned in the breech housing transversely with respect to the firing pin for locking and unlocking the firearm. In place of the usual catch for retaining the safety shaft in its locked position, a spring is provided urging the shaft to its release position so that the safety shaft will always be in the release or firing position except when a force is exerted to retain the safety shaft in the locked position. A locking pin locks the firing pin and is released from this locking position during the last third of movement of the trigger so that the firearm is always ready for firing.
Inventors
- 👤 W Volkmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:27
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/64; F41A17/72
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
In a firing pin safety device for small firearms, the combination of a pivotally mounted hammer engageable with a firing pin, a pivotally mounted safety shaft having lock and release positions extending transversely to the firing pin and having an opening therein through which the end of the firing pin is exposed to the hammer when the shaft is in the release position, the outer surface of said safety shaft blocking said hammer from the firing pin when in the locked position, a safety lever attached to said safety shaft to enable the shaft to be pivoted to the locked position when a force is applied to said lever, and spring means mounted on said safety shaft for biasing said shaft in the release position so that the shaft is returned to the release position when the force is removed from the lever.
Claim 2
Dependent Claim
143 words
In a firing pin safety device for small firearms, the combination of a pivotally mounted hammer engageable with a firing pin, a pivotally mounted safety shaft having lock and release positions extending transversely to the firing pin and having an opening therein through which the end of the firing pin is exposed to the hammer when the shaft is in the release position, the outer surface of said safety shaft blocking said hammer from the firing pin when in the locked position, a safety lever attached to said safety shaft to enable the shaft to be pivoted to the locked position when a force is applied to said lever, and spring means mounted on said safety shaft for biasing said shaft in the release position so that the shaft is returned to the release position when the force is removed from the lever.
Claim 3
Dependent Claim
54 words
In a firing pin safety device as claimed in claim 1, and a frame, said spring means comprising a coil tension spring around said shaft and having first and second ends, said shaft having a recess therein receiving one of said spring ends, the other end being disposed in a recess in said frame.
Claim 4
Dependent Claim
44 words
In a firing pin safety device as claimed in claim 2 wherein said shaft has a smaller diameter extension and said spring is positioned on said extension such that the outer dimension of said spring is less than the outer diameter of said shaft.
Claim 5
Dependent Claim
24 words
In a firing pin safety device as claimed in claim 3 wherein said lever is attached to the smaller diameter extension of said shaft.
Claim 6
Dependent Claim
47 words
In a firing pin safety device as claimed in claim 1 and a trigger, a locking pin lockingly engaging said firing pin, and means actuated by the pulling of said trigger to the firing position for releasing said locking pin so that the firing pin is free.
Claim 7
Dependent Claim
27 words
In a firing pin safety device as claimed in claim 5 wherein said locking pin is released during the last third of the movement of the trigger.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |