Adjustable stabilizer assembly for rifle

• US 10,317,163 B2
• Filed: 01/11/2018
• Issued: 06/11/2019
• Est. Priority Date: 01/13/2017
• Status: Active Grant

• Current Assignee: Paul Poindexter
• Original Assignee: Paul Poindexter
• Inventors: Poindexter, Paul
• Primary Examiner(s): Morgan, Derrick R
• Application Number:
  US15/732,897
• Publication Number:
  US 20180202745A1
• Time in Patent Office: 516 Days
• CPC Class Codes: F41A 23/02 Mountings without wheels
• CPC Class Codes: F41A 23/08 Bipods
• CPC Class Codes: F41A 23/12 Tripods ; Mountings having at least three legs
• CPC Class Codes: F41G 11/003 Mountings with a dove tail element, e.g. "Picatinny rail systems"

Abstract

A rifle stabilizer assembly attaching to a front stock of a rifle provides an assortment of stabilizing elements to enhance the shooting potential of a rifle, the assembly providing a stabilizer bar attached to the underside of a front rifle stock, a barrier block attachment, a bipod adapter attachment and a tripod adapter attachment, each attachment selectively chosen by a shooter as appropriate for a selected shot while in competition, hunting or combat.

Claims

1. An adjustable rifle stabilizer assembly attaching to, imbedded within or incorporated into the a front rifle stock of a rifle, the rifle stabilizer assembly comprising:

a linear bar rail affixed to said front rifle stock defining an upper surface, a lower portion defining a linear dovetail slot presenting a first end forming a slot opening, and a second closed end, terminating within but not through said bar rail, said linear dovetail slot further defining an upper slot surface defining a plurality of evenly spaced pin detents and at least two recessed mounting bores through which respective installation screws are securely installed to secure said linear bar rail to said front rifle stock when said linear bar rail is attached to or imbedded within said front rifle stock;

a workpiece, selected from a group of attachments including one or more barrier blocks, a bipod mounting member or a tripod mounting member, each said workpiece defining a flat upper portion extending a dovetail expansion defining a flat upper surface extending above said flat upper portion adapted for insertion within said slot opening and slidable engaging said linear dovetail slot of said linear bar rail; and

at least one upward urged lock pin centrally located within said upper surface of said dovetail expansion capable of being intentionally lowered below said upper surface by a lock pin release means which is situated within said workpiece to avoid interference between said linear bar rail and said workpiece during use, each at least one said lock pin defining a shaped head extending above said upper surface of said dovetail expansion into a locked position, placing said shaped head within a selected pin detent of said linear bar rail as determined by the user to lock said workpiece into a position along said linear bar rail suited for the chosen rifle shot, wherein said lock pin is forcibly elevated into a locked position and prevented from downward movement until such time as the lock pin release means is activated, allowing said shaped head of the lock pin to be lowered below said upper surface of said dovetail expansion and moved along said linear bar rail or disengaged from said slot opening.

2. The adjustable rifle stabilizer assembly of claim 1 wherein said workpiece is said at least one barrier block further comprising:

a flat upper portion extending an axially pivotal upward oval dovetail expansion slidably engaging said linear dovetail slot of said linear bar rail, said oval dovetail expansion defining an upper surface defining at least one vertical pin bore, a first barrier surface depending perpendicular from said flat upper portion, a second barrier surface depending at a reduced angle from said flat upper portion, a lower portion, a first side plate, and a second side plate, said lock pin release means extending from said first or second side plate, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

3. The adjustable rifle stabilizer assembly of claim 1 wherein said workpiece is the bipod mounting member comprising:

a flat upper portion extending an upward dovetail expansion slidably engaging said linear dovetail slot of said linear bar rail, said upward dovetail expansion further defining a flat upper surface containing at least one vertical pin bore, said bipod mounting member further defining a front margin, a rear margin, and a lower portion defining a bipod mounting base, wherein said lock pin release means extends from said front or rear margin, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

4. The adjustable rifle stabilizer assembly of claim 1 wherein said workpiece is the tripod mounting member comprising:

a flat upper portion extending an upward dovetail expansion slidably engaging said linear dovetail slot of said linear bar rail, said upward dovetail expansion further defining a flat upper surface containing at least one vertical pin bore, said tripod mounting member further defining lateral portions, and a lower portion defining a tripod mounting base, wherein said lock pin release means extends from said at least one lateral portion, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

5. The adjustable rifle stabilizer assembly of claim 1 comprising:

each said at least one lock pin further defines a shaped head, a base, and a shaft defining a reduced central portion and urged upward from said vertical pin bore by a first spring; and

said lock pin release means further defines a transverse bore within said lower portion of said workpiece, a release pin providing a depression end, a base end, a cylindrical shaft defining a reduced bypass portion biased outward within said transverse bore by a second spring, wherein said depression end of said release pin in depressed, moving said release pin inward to aligned said reduced bypass portion into an intersection with said reduced central portion of said at least one lock pin, allowing said lock pin to be raised or lowered within said respective vertical pin bore, and wherein said release pin, when not depressed, aligns said shaft of said release pin within said reduced central portion of said lock pin, preventing downward movement of said lock pin and preventing said shaped head from being disengaged with said respective pin detent to unlock said workpiece from a locked position within said linear bar rail.

6. The adjustable rifle stabilizer assembly of claim 1 comprising:

each said at least one lock pin further defines a shaped head, a base, a shaft with each said at least one lock pin urged upward from said vertical pin bore by a first spring; and

said lock pin release means further defines a transverse bore within said lower portion of said workpiece, a release pin providing a depression end, a base end, a cylindrical shaft defining a tapered shaft portion leading into a reduced diameter portion biased outward within said transverse bore by a second spring, wherein said depression end of said release pin in depressed, moving said release pin inward to aligned said reduced diameter portion below said base of said at least one lock pin, allowing said lock pin to be lowered within said respective vertical pin bore, and wherein said release pin, when not depressed, aligns said shaft of said release pin below said base of said lock pin, preventing downward movement of said lock pin and preventing said shaped head from being disengaged with said respective pin detent to unlock said workpiece from a locked position within said linear bar rail.

7. The adjustable rifle stabilizer assembly of claim 1 comprising:

each said at least one lock pin further defines a shaped head, a base, a shaft engaged within each said vertical pin bore;

said workpiece defining a lateral slot within said lower portion containing a vertically oriented outer thread shaft upon which is rotatably engaged a central thread bore of a rotating wheel extending transversely through said lateral slot, said rotating wheel defining an upper surface, each said base of each lock pin extending within said lateral slot, wherein said rotating wheel, when elevated upon said outer threaded shaft applied an upward force to said base of each said at least one lock pin, forcing said shaped head upward into a locked engagement with said respective pin detent within said linear bar rail, placing said workpiece in a stationary location upon said linear bar rail, and wherein said rotating wheel, when lowered upon said outer threaded shaft, allows for said base of each said at least one lock pin to be retracted within said vertical pin shaft of said workpiece, releasing said lock pin from each respective pin detent within said linear bar rail to unlock said workpiece from a locked position within said linear bar rail.

8. An adjustable rifle stabilizer assembly attaching to, imbedded within or incorporated into the a front rifle stock of a rifle, the rifle stabilizer assembly comprising:

a linear bar rail defining an upper surface and a lower portion extending a lower dovetail extension defining a flat lower surface, a first end and a second end, said flat lower surface presenting a plurality of evenly spaced pin detents in a uniform linear manner;

a workpiece, selected from a group of attachments including one or more barrier blocks, a bipod mounting member or a tripod mounting member, each said workpiece defining a flat upper portion forming an inner upper dovetail slot capable of slidably engaging said lower dovetail extension of said linear bar rail, each said workpiece further extending said lower 0 portion, said upper dovetail slot of each said workpiece further defining a flat inner surface including at least one vertical pin bore;

at least one upwardly urged lock pin defining a shaped head extending above said flat inner surface of said dovetail slot into a locked position, placing the shaped head within a selected pin detent as determined by the user to lock the respective workpiece into a position along said lower dovetail extension of said linear bar rail suited for the chosen rifle shot, wherein each said lock pin is forcibly elevated into a locked position and prevented from downward movement until such time as said lock pin release means is activated, allowing for said shaped head of said lock pin to be lowered into an unlocked position below said flat inner surface and moved along or removed from said first end or second end of said linear bar rail; and

each said at least one lock pin further defines a shaped head, a base, and a shaft defining a reduced central portion and urged upward from said vertical pin bore by a first spring; and

said lock pin release means further defines a transverse bore within said lower portion of said workpiece, a release pin providing a depression end, a base end, a cylindrical shaft defining a reduced bypass portion biased outward within said transverse bore by a second spring, wherein said depression end of said release pin in depressed, moving said release pin inward to aligned said reduced bypass portion into an intersection with said reduced central portion of said at least one lock pin, allowing said lock pin to be raised or lowered within said respective vertical pin bore, and wherein said release pin, when not depressed, aligns said shaft of said release pin within said reduced central portion of said lock pin, preventing downward movement of said lock pin and preventing said shaped head from being disengaged with said respective pin detent to unlock said workpiece from a locked position within said linear bar rail.

9. The adjustable rifle stabilizer assembly of claim 8 wherein said workpiece is said at least one barrier block further comprising:

a flat upper portion extending an axially pivotal upward linear dovetail slot slidably engaging said lower dovetail expansion of said linear bar rail, said upward dovetail slot defining a flat inner surface defining at least one vertical pin bore, and a lower surface further defining a first barrier surface depending perpendicular from said flat upper portion, a second barrier surface depending at a reduced angle from said flat upper portion, a lower portion, a first side plate, and a second side plate, said lock pin release means extending from said first or second side plate, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said flat lower surface of said lower dovetail extension of said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

10. The adjustable rifle stabilizer assembly of claim 8 wherein said workpiece is said bipod mounting member further comprising:

a flat upper portion extending an upper linear dovetail slot slidably engaging said lower dovetail extension of said linear bar rail, said upper linear dovetail slot defining a flat inner surface containing at least one vertical pin bore, said bipod mounting member further defining a front margin, a rear margin, and a lower portion defining a bipod mounting base, wherein said lock pin release means extends from said front or rear margin, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said flat lower surface of said lower dovetail extension of said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

11. The adjustable rifle stabilizer assembly of claim 8 wherein said workpiece is the tripod mounting member comprising:

a flat upper portion extending an upper linear dovetail slot slidably engaging said lower dovetail extension of said linear bar rail, said upper linear dovetail slot defining a flat inner surface containing at least one vertical pin bore, said tripod mounting member further defining lateral portions, and a lower portion defining a tripod mounting base, wherein said lock pin release means extends from said at least one lateral portion, and said at least one lock pin respectively contained within each said at least one vertical pin bore with said lock pin release means extending each said lock pin upward into a locked position within at least one selected pin indent within said linear bar rail and said lock pin release means upon depression, releasing said at least one lock pin to be lowered below said upper surface of said dovetail extension for movement within or removal from said linear bar rail.

12. The adjustable rifle stabilizer assembly of claim 8 comprising:

each said at least one lock pin further defines a shaped head, a base, a shaft with each said at least one lock pin urged upward from said vertical pin bore by a first spring; and

said lock pin release means further defines a transverse bore within said lower portion of said workpiece, a release pin providing a depression end, a base end, a cylindrical shaft defining a tapered shaft portion leading into a reduced diameter portion biased outward within said transverse bore by a second spring, wherein said depression end of said release pin in depressed, moving said release pin inward to aligned said reduced diameter portion below said base of said at least one lock pin, allowing said lock pin to be lowered within said respective vertical pin bore, and wherein said release pin, when not depressed, aligns said shaft of said release pin below said base of said lock pin, preventing downward movement of said lock pin and preventing said shaped head from being disengaged with said respective pin detent to unlock said workpiece from a locked position within said linear bar rail.