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US 9,234,713 B1Granted
Semi-automatic cartridge feeding system
AssigneeInnovative Tool and Advanced Weapon Solutions, LLC
InventorClifford W. Olson
Life of this patent
Estimating the term…
Abstract
Systems, methods, and articles of manufacture for repeating and semi-automatic cone-breech firearm systems are provided. A semi-automatic cone-breech firearm system may, for example, comprise a tapered semi-automatic seven (7) or eight (8) lug bolt having a cartridge channel that facilitates engagement of an ammunition cartridge with a cartridge seat and/or a plunger-style ejector.
Claims17
A firearm bolt assembly, comprising:
- a bolt body comprising a first end and a second end, with the second end comprising a tapered breech block face;
- a first locking-lug extending radially outward from the bolt body at the second end thereof and oriented at a first radial position along a circumference of the bolt body and occupying a first portion of the tapered breech block face;
- a second locking-lug extending radially outward from the bolt body at the second end thereof and oriented at a second radial position along the circumference of the bolt body and occupying a second portion of the tapered breech block face;
- a circularly-shaped cartridge seat recessed into the tapered breech block face such that the tapered breech block face extends axially outward from the cartridge seat by a first distance corresponding to a first portion of the circumference of the circularly-shaped cartridge seat, the first portion of the circumference of the circularly-shaped cartridge seat corresponding to a third portion of the tapered breech block face that is disposed between the first and second portions of the tapered breech block face on an upper region of the tapered breech block face;
- a cartridge guide disposed within the tapered breech block face, the cartridge guide comprising a first end and a second end, the cartridge guide defining a fourth portion of the tapered breech block face that extends axially outward from the cartridge seat by a second distance corresponding to a second portion of the circumference of the circularly-shaped cartridge seat, the fourth portion of the tapered breech block face being disposed on an lower region of the tapered breech block face, wherein the second distance is less than the first distance;
- and
- cartridge guide fillets disposed at each of the first and second ends of the cartridge guide and oriented at third and fourth radial positions along the circumference of the bolt body, respectively, the cartridge guide fillets defining two transition portions of the tapered breech block face, the transition portions being disposed between the third and fourth portions of the tapered breech block face.
4 more elements
A firearm bolt assembly, comprising:
- a bolt body comprising a first end and a second end, with the second end comprising a tapered breech block face;
- a cartridge guide disposed within the tapered breech block face, the cartridge guide comprising a first end and a second end;
- and
- cartridge guide fillets disposed at each of the first and second ends of the cartridge guide,
- wherein the firearm bolt assembly comprises a semi-automatic firearm bolt assembly, and further comprises:
- a cartridge extractor seated in an extractor channel of the bolt body;
- eight locking lugs emanating from the bolt body near the second end thereof;
- and
- wherein the cartridge extractor comprises a locking lug sleeve through which one of the eight locking lugs projects.
6 more elements
A firearm bolt assembly, comprising:
- a bolt body comprising a first end and a second end, with the second end comprising a tapered breech block face;
- a cartridge guide disposed within the tapered breech block face, the cartridge guide comprising a first end and a second end;
- and
- cartridge guide fillets disposed at each of the first and second ends of the cartridge guide,
- wherein the firearm bolt assembly comprises a semi-automatic firearm bolt assembly, and further comprises:
- a cartridge extractor seated in an extractor channel of the bolt body;
- seven locking lugs emanating from the bolt body near the second end thereof;
- and
- wherein the cartridge extractor comprises a wide-flange, said wide-flange being defined by two symmetric rectangular transverse projections emanating from the body of the cartridge extractor.
6 more elements
Dependencies are inferred from the claim text.