Patent US4742357A successfully refreshed from Google Patents.
Patent US4499683A successfully refreshed from Google Patents.
US4499683A
Expired / Lapsed
US
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Auxiliary trigger for firearm
Assignee: United States Department of the Army
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Filing: 1983-09-26
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Granted: 1985-02-19
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Expires: 2003-09-26
Abstract
Abstract A dual function trigger guard has hinged locking and pinned features to ele a firearm when being used in a first mode to be secure against accidental actuation of the trigger and when modified to provide an auxiliary extended trigger which can be efficiently converted to gloved rather than finger operation.
Inventors
- 👤 Giulio V. Savioli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:55
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/06; F41A19/09; F41A19/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
An auxiliary trigger for a firearm which comprises: a biased trigger having a trigger pin hole in one end thereof; a first holed pivot support member operatively positioned on a lower side of the muzzle end of said firearm; a second holed pivot support member operatively disposed and fixedly attached to an inside surface of the handle of said firearm; convertible trigger guard means detachably connected to said first holed pivot support member by removeable pin means on a front end and hingedly connected to said second holed pivot support member, said guard means acting as a conventional trigger guard to prevent accidental firing then said front end is pin connected to said first support member, and for acting as an auxiliary extended trigger for gloved operation when said trigger guard front end is pivotally connected to said end of said biased trigger by means of insertion of a pin through said trigger pin hole.
Claim 2
Dependent Claim
155 words
An auxiliary trigger for a firearm which comprises: a biased trigger having a trigger pin hole in one end thereof; a first holed pivot support member operatively positioned on a lower side of the muzzle end of said firearm; a second holed pivot support member operatively disposed and fixedly attached to an inside surface of the handle of said firearm; convertible trigger guard means detachably connected to said first holed pivot support member by removeable pin means on a front end and hingedly connected to said second holed pivot support member, said guard means acting as a conventional trigger guard to prevent accidental firing then said front end is pin connected to said first support member, and for acting as an auxiliary extended trigger for gloved operation when said trigger guard front end is pivotally connected to said end of said biased trigger by means of insertion of a pin through said trigger pin hole.
Claim 3
Dependent Claim
60 words
An auxiliary trigger as recited in claim 1 wherein said convertible trigger guard means includes a formed front bar member having a holed front end removeably connected to said first pivot support member, means for preventing said front bar from collapsing toward said trigger, and a hinge point operatively positioned adjacent said means for preventing said front bar from collapsing.
Claim 4
Dependent Claim
46 words
An auxiliary trigger as recited in claim 2 wherein said convertible trigger guard means includes a formed rear bar member having a front end hingedly connected to said rear end of said front bar, and a rear end hingedly connectected to said second pivot support member.
Claim 5
Dependent Claim
43 words
An auxiliary trigger as recited in claim 3 wherein said means for preventing said front bar from collapsing includes a front bar having a shelf on the rear end of said front bar, said shelf contacting said front end of said rear bar.
References Cited (Backward Citations)
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |