Patent US3945142A successfully refreshed from Google Patents.
US3945142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mount for a sight on firearms
Assignee: Carl Walther GmbH
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Filing: 1974-08-02
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Granted: 1976-03-23
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Expires: 1994-08-02
Abstract
Abstract A front or rear sight is mounted on a barrel of a firearm by an open ring positioned around the barrel and having spaced ends upon which is mounted a fastening element. A nut is retained on the upper surface of the fastening element and a mount for a sight is positioned over the nut and fastening element. A screw passes through the mount to be threaded into the nut so that tightening of the screw will draw the fastening element and nut upwardly to tighten the ring around the barrel.
Inventors
- 👤 Dieter Keppeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:36
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/02; F41G1/06; F41G1/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
In a mounting of a sight on a barrel of a firearm, the combination of an open ring having spaced ends and positioned around the barrel, a fastening element mounted on said ring spaced ends, a nut retained on said fastening element, a mount for a sight positioned over said nut and fastening element, and a screw passing through said mount and threaded into said nut so that tightening of the screw will draw said fastening element and nut upwardly to tighten said ring around the barrel.
Claim 2
Dependent Claim
87 words
In a mounting of a sight on a barrel of a firearm, the combination of an open ring having spaced ends and positioned around the barrel, a fastening element mounted on said ring spaced ends, a nut retained on said fastening element, a mount for a sight positioned over said nut and fastening element, and a screw passing through said mount and threaded into said nut so that tightening of the screw will draw said fastening element and nut upwardly to tighten said ring around the barrel.
Claim 3
Dependent Claim
26 words
In a mounting as claimed in claim 1 and guide means on said fastening element parallel to the axis of the barrel for retaining said nut.
Claim 4
Dependent Claim
46 words
In a mounting as claimed in claim 1 wherein said spaced ends are bent upwardly and outwardly and the outwardly bent portions have a wedge shape, there being a wedged-shaped T-slot in the lower surface of said fastening element receiving said wedge-shaped ends of said ring.
Claim 5
Dependent Claim
64 words
In a mounting as claimed in claim 2 wherein said guide means are on the upper surface of said fastening element and comprise a slot having inwardly inclined side walls, said nut being provided with correspondingly shaped guide surfaces to be slidingly received within said fastening element slot so that the position of said nut is adjustable in a direction parallel to the barrel.
Claim 6
Dependent Claim
25 words
In a mounting as claimed in claim 1 wherein said mount has a recess in the underside thereof to accommodate said nut and fastening element.
Claim 7
Dependent Claim
31 words
In a mounting as claimed in claim 1 wherein there is a notch in said mount within which said ring is seated such that said mount rests firmly upon said barrel.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |