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US 7,219,461 B1Granted
Bolt assembly with locking system
AssigneeRA Brands, L.L.C.
InventorsMichael D. Keeney, Michael Brent Jarboe
Life of this patent
Estimating the term…
Abstract
A locking system for firearms including a locking ring rotatably mounted to a bolt. As the bolt is moved through a bolt slide, the locking ring engages a cam member, which causes the locking ring to rotate about the bolt, which can remain fixed against rotation.
Claims22
A method of operating a bolt assembly for a firearm, comprising:
- providing a firearm comprising:
- a barrel having a firing chamber;
- a receiver;
- a bolt slide;
- a bolt slidably received within the bolt slide;
- and a locking member;
- advancing the bolt toward the firing chamber to chamber a round of ammunition in the firing chamber;
- locking the bolt at a rear of the firing chamber with the locking member, wherein a bolt face of the bolt is adjacent to the round of ammunition;
- and
- firing the round of ammunition, whereupon the bolt moves towards a rear of the receiver and remains substantially fixed against rotation about a longitudinal axis of the bolt, with respect to the barrel,
- wherein locking the bolt comprises rotating the locking member about the bolt in a first direction.
8 more elements
A method of operating a bolt assembly for a firearm, comprising:
- providing a firearm comprising:
- a barrel;
- a firing chamber;
- a bolt slide having a bolt slide passage;
- a locking member at least partially received within the bolt slide passage;
- and a bolt extending through the locking member, the bolt having a bolt face;
- advancing the bolt toward the firing chamber to chamber a round of ammunition in the firing chamber;
- rotating the locking member in a first direction about the bolt to lock the bolt with the locking member so that the bolt face is adjacent to the chambered round of ammunition;
- firing the round of ammunition, whereupon the bolt slide moves towards a rear of a receiver;
- and
- unlocking the bolt after firing the round of ammunition by rotating the locking member about the bolt in a second direction opposite to the first direction.
8 more elements
A method of operating a bolt assembly for a firearm, comprising:
- providing a firearm comprising:
- a firing chamber;
- a bolt slide;
- a bolt having a bolt face;
- and a locking member located between the bolt and the bolt slide and at least partially received within the bolt slide;
- providing a round of ammunition chambered within the firing chamber with the bolt face adjacent to the round of ammunition at a rear of the firing chamber;
- firing the round of ammunition;
- moving the bolt slide in a longitudinal direction toward a rear of a receiver while the bolt face remains at a rear of the firing chamber;
- as the bolt slide moves rearwardly, rotating the locking member about the bolt by engaging a member of the bolt slide with the locking member, wherein the locking member rotates with respect to a barrel, the bolt slide, and the bolt;
- and
- after rotating the locking member about the bolt, moving the bolt and the locking member toward the rear of the receiver.
8 more elements
Dependencies are inferred from the claim text.