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US4008536A Expired / Lapsed US ⏱️ 0.0 years remaining

Detachable gun sight mounts

Assignee: TEMBELIS JAMES
•
Filing: 1975-03-10
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Granted: 1977-02-22
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Expires: 1995-03-10
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Abstract

Abstract A readily attachable and detachable gun sight mount for mounting rifle-like sights to a shotgun. The invention provides shotguns, with ventilated ribs, with a gun sight mount that is securely clamped to and accurately indexed with the ventilated rib. The invention provides shotguns, not provided with a ventilated rib, with a gun sight mount that is securely clamped to the gun barrel and is accurately indexed with existing structures of the shotgun barrel. The preferred gun sight mounts of this invention incorporate for their employment a two part clamp which is accurately formed to fit the structural parts of the gun barrel to which the gun sight mount is to be clamped, a means for holding the parts of the clamp in alignment during assembly with the gun barrel, a pair of fasteners, a portion of the gun sight mount formed to index to and mechanically engage with an existing part of the gun barrel, and an appropriate portion of the mount suitably formed to receive and securely mount a gun sight to the gun sight mount.

Inventors

  • 👤 Jean M. Adams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 16:04
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/46; F41G1/473

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 227 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting mans for mounting a pair of rifle-like sights to said shotgun without the need for modification of the shotgun barrel or its associated structures and said gun sight mount having a body comprising: a. an upper sight mounting portion formed to mount a gun sight, b. a lower noncircumferential clamping portion for clampably attaching said gun sight mount to an existing longitudinal gun barrel structure, c. at least one portion of said gun sight mount having formed thereto an indexing means and an engaging means for mechanically engaging with and indexing to a gun barrel structure, and d. fastening means for maintaining said gun sight mount in clamping attachment with said gun barrel structure, and wherein said body comprises two body members; a first body member, and a second body member, and the lower portions of said body members are configured so that when said first body member is assembled with said second body member said lower portions combine to form a longitudinal groove which conforms to the geometries of a longitudinal segment of a gun barrel structure and said longitudinal groove is configured to embrace more than 60% but less than 100% of said longitudinal segment of said gun barrel structure.
Claim 2
Dependent Claim 227 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting mans for mounting a pair of rifle-like sights to said shotgun without the need for modification of the shotgun barrel or its associated structures and said gun sight mount having a body comprising: a. an upper sight mounting portion formed to mount a gun sight, b. a lower noncircumferential clamping portion for clampably attaching said gun sight mount to an existing longitudinal gun barrel structure, c. at least one portion of said gun sight mount having formed thereto an indexing means and an engaging means for mechanically engaging with and indexing to a gun barrel structure, and d. fastening means for maintaining said gun sight mount in clamping attachment with said gun barrel structure, and wherein said body comprises two body members; a first body member, and a second body member, and the lower portions of said body members are configured so that when said first body member is assembled with said second body member said lower portions combine to form a longitudinal groove which conforms to the geometries of a longitudinal segment of a gun barrel structure and said longitudinal groove is configured to embrace more than 60% but less than 100% of said longitudinal segment of said gun barrel structure.
Claim 3
Dependent Claim 24 words
The gun sight mount of claim 1 wherein said body members are guided into accurate alignment one with the other by an alignment means.
Claim 4
Dependent Claim 18 words
The gun sight mount of claim 2 wherein said alignment means are fixed elements of said body members.
Claim 5
Dependent Claim 25 words
The gun sight mount of claim 2 wherein said alignment means are fixed elements of said body members cooperating with elements of a gun sight.
Claim 6
Dependent Claim 31 words
The gun sight mount of claim 2 wherein said lower noncircumferential clamping portion is configured to conform to the geometries of a longitudinal segment of a ventilated rib of a shotgun.
Claim 7
Dependent Claim 62 words
The gun sight mount of claim 5 wherein said indexing means and said engaging means are a set of inward directed lip forming the lower portions of said longitudinal groove of said gun sight mount and said lips are insertible into at least one vent of said ventilated rib and said lips are engageable with a rib support of said ventilated rib.
Claim 8
Dependent Claim 33 words
The gun sight mount of claim 2 wherein said lower noncircumferential clamping portion is configured to conform to the geometries of a longitudinal segment of the substantially tubular gun barrel of a shotgun.
Claim 9
Dependent Claim 28 words
The gun sight mount of claim 7 wherein said body has a notch therein which is indexable to and engageable with a bead front sight of a shotgun.
Claim 10
Dependent Claim 30 words
The gun sight mount of claim 7 wherein said body has at least one notch therein which is indexable to and engageable with a depending lug of a shotgun barrel.
Claim 11
Dependent Claim 32 words
The gun sight mount of claim 2 wherein said gun sight mount is employable for mounting a front sight and said gun sight mount is equally employable for mounting a rear sight.
Claim 12
Dependent Claim 28 words
The gun sight mount of claim 2 wherein said longitudinal groove is provided with a thin lining of cushioning material such as rubber, plastic, adhesive and the like.
Claim 13
Dependent Claim 292 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting means for mounting a pair of rifle-like sights to said shotgun and said gun sight mount is attachable and detachable by a person of ordinary mechanical skill using tools commonly found in home workshops and said gun sight mount comprises a two piece body having a first body member and a second body member and said body members having an upper sight mounting portion having formed therein a lateral dovetail groove for mounting a gun sight and said body members having a lower clamping portion having a longitudinal groove therein and said groove conforms to the geometries of a portion of a longitudinal segment of a ventilated rib of a shotgun and said longitudinal groove has at its lower portion at least one inward directed lip and said lip is insertible into a vent of said ventilated rib and said lip is engageable with a rib support of said ventilated rib and said first body member has at least one lateral threaded hole formed in its upper sight mounting portion and said second body member has at least one lateral clearance hole passing through its upper sight mounting portion and said clearance hole in said second body member is alignable with said threaded hole in said first body member and a threaded fastener is passed through said clearance hole and engaged in said threaded hole for the purpose of drawing said first body member towards said second body member and thereby bringing said longitudinal grooves in said first and second body members into clamping engagement with the lateral sides of said longitudinal segment of a ventilated rib.
Claim 14
Dependent Claim 292 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting means for mounting a pair of rifle-like sights to said shotgun and said gun sight mount is attachable and detachable by a person of ordinary mechanical skill using tools commonly found in home workshops and said gun sight mount comprises a two piece body having a first body member and a second body member and said body members having an upper sight mounting portion having formed therein a lateral dovetail groove for mounting a gun sight and said body members having a lower clamping portion having a longitudinal groove therein and said groove conforms to the geometries of a portion of a longitudinal segment of a ventilated rib of a shotgun and said longitudinal groove has at its lower portion at least one inward directed lip and said lip is insertible into a vent of said ventilated rib and said lip is engageable with a rib support of said ventilated rib and said first body member has at least one lateral threaded hole formed in its upper sight mounting portion and said second body member has at least one lateral clearance hole passing through its upper sight mounting portion and said clearance hole in said second body member is alignable with said threaded hole in said first body member and a threaded fastener is passed through said clearance hole and engaged in said threaded hole for the purpose of drawing said first body member towards said second body member and thereby bringing said longitudinal grooves in said first and second body members into clamping engagement with the lateral sides of said longitudinal segment of a ventilated rib.
Claim 15
Dependent Claim 350 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting means for mounting a pair of rifle-like sights to said shotgun and said gun sight mount is attachable and detachable by a person of ordinary mechanical skill using tools commonly found in home workshops and said gunsight mount comprises a two piece body having a first body member and a second body member and said body members having an upper sight mounting portion having formed therein a lateral dovetail groove for mounting a gun sight and said body members having a lower clamping portion having a longitudinal arcuate groove therein and said arcuate groove conforms to the geometries of a portion of a longitudinal segment of the substantially tubular barrel of a shotgun and said arcuate longitudinal groove has at its lower portion at least one notch and said notch has at least one longitudinal surface and at least one arcuate surface and said notch is configured so that at least one longitudinal surface of said notch and at least one arcuate surface of said notch are mechanically indexable to and engagable with a depending fixed structure of said gun barrel and said body members further having said upper sight mounting portion provided with at least one notch which is mechanically engageable and indexable with a ball front sight of a shotgun and said first body member has at least one lateral threaded hole formed in its upper sight mounting portion and said second body member has at least one lateral clearance hole passing through its upper sight mounting portion and said clearance hole in said second body member is alignable with said threaded hole in said first body member and a threaded fastener is passed through said clearance hole and engaged in said threaded hole for the purpose of drawing said first body member towards said second body member and thereby bringing said longitudinal arcuate grooves of said first and second body members into clamping engagement with a longitudinal segment of said shotgun barrel.
Claim 16
Dependent Claim 350 words
A readily detachable gun sight mount which cooperates with a second gun sight mount of similar construction to provide a conventional shotgun with a mounting means for mounting a pair of rifle-like sights to said shotgun and said gun sight mount is attachable and detachable by a person of ordinary mechanical skill using tools commonly found in home workshops and said gunsight mount comprises a two piece body having a first body member and a second body member and said body members having an upper sight mounting portion having formed therein a lateral dovetail groove for mounting a gun sight and said body members having a lower clamping portion having a longitudinal arcuate groove therein and said arcuate groove conforms to the geometries of a portion of a longitudinal segment of the substantially tubular barrel of a shotgun and said arcuate longitudinal groove has at its lower portion at least one notch and said notch has at least one longitudinal surface and at least one arcuate surface and said notch is configured so that at least one longitudinal surface of said notch and at least one arcuate surface of said notch are mechanically indexable to and engagable with a depending fixed structure of said gun barrel and said body members further having said upper sight mounting portion provided with at least one notch which is mechanically engageable and indexable with a ball front sight of a shotgun and said first body member has at least one lateral threaded hole formed in its upper sight mounting portion and said second body member has at least one lateral clearance hole passing through its upper sight mounting portion and said clearance hole in said second body member is alignable with said threaded hole in said first body member and a threaded fastener is passed through said clearance hole and engaged in said threaded hole for the purpose of drawing said first body member towards said second body member and thereby bringing said longitudinal arcuate grooves of said first and second body members into clamping engagement with a longitudinal segment of said shotgun barrel.

References Cited (Backward Citations)

US744651A Cited
US2498329A Cited
US2781583A Cited
US2874504A Cited
US2795048A Cited
US3193932A Cited
US3840995A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-02-22 1980-08-23 1981-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-02-22 1984-08-23 1985-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-02-22 1988-08-23 1989-02-22 $7700.00 Window Closed / Lapsed

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