Roller and bearing delayed firearm operating systems
OwnerJames Matthew Underwood, Larry Cullen Underwoodinventors
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Abstract
A firearm operating system includes a forward bolt with an internal cavity, a carrier disposed on a rear side of the forward bolt where the carrier includes a cavity, a short cam pin, a plurality of bearings, a retracted configuration, and a deployed configuration. At least a portion of a forward section of the short cam pin is disposed within the internal cavity of the forward bolt. At least a portion of a rear section of the short cam pin is disposed within the cavity of the carrier. Movement from the retracted configuration to the deployed configuration includes movement in a forward/aft direction of the short cam pin relative to the forward bolt and movement of the plurality of bearings.
Claims20
A firearm operating system comprising:
- a bolt comprising a rear cavity;
- a plurality of bearings disposed at least partially within the bolt;
- a carrier disposed on a rear side of the bolt, the carrier comprising a forward cavity;
- and
- a cam pin comprising a forward section, wherein:
- the forward section of the cam pin is disposed within the rear cavity of the bolt;
- the forward section of the cam pin comprises a plurality of forward surfaces that each correspond to one of the plurality of bearings;
- and
- each of the forward surfaces is oblique relative to a forward/aft direction of the firearm operating system.
A firearm operating system comprising:
- a bolt comprising a rear cavity;
- at least two bearings disposed at least partially within the bolt;
- a carrier disposed on a rear side of the bolt, the carrier comprising a forward cavity;
- a cam pin comprising a forward section and a rear section, wherein the cam pin is disposed between the bolt and the carrier;
- and
- a plurality of forward surfaces that each corresponds to one of the at least two bearings,
- wherein each of the forward surfaces is oblique relative to a forward/aft direction of the firearm operating system.
A firearm operating system comprising:
- a bolt comprising a rear cavity;
- at least two bearings disposed at least partially within the bolt;
- a carrier disposed on a rear side of the bolt, the carrier comprising a forward cavity;
- a plurality of forward surfaces that each corresponds to one of the at least two bearings;
- and
- a barrel extension comprising a plurality of recesses that each corresponds to one of the at least two bearings,
- wherein each of the forward surfaces is oblique relative to a forward/aft direction of the firearm operating system.
Dependencies are inferred from the claim text.