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US 11,794,261 B2Granted
Rotary tool for lower receiver manufacturing
AssigneeBlackHawk Manufacturing Group Inc.
InventorWayne R. Partington
Life of this patent
Estimating the term…
Abstract
A rotary tool can be adapted for removing material from a workpiece such as a lower receiver. A rotary tool can have an adapter with a major diameter, and a cutter head with a minor diameter. The major diameter of the adapter can reduce deflection and chatter, while the minor diameter of the cutter head can be used to manufacture lower receivers with accuracy. The rotary tool can be adapted to be engaged with a rotary power tool.
Claims16
A rotary tool comprising:
- an adapter configured to engage with a rotary power tool collet, the adapter comprising:
- an extension portion having an engagement diameter and an extension length and configured to be received within a rotary power tool collet;
- and
- a shaft portion having a major diameter;
- and
- a cutter head engaged with the shaft portion of the adapter by a thermal fit, the cutter head comprising:
- a minor diameter less than the major diameter;
- and
- at least two fluting teeth;
- wherein an overall length of the rotary tool is configured to be greater than a distance between a top surface of a buffer tower of a firearm lower receiver and a bottom of a trigger cavity of the firearm lower receiver.
7 more elements
A system configured to manufacture an incompletely manufactured firearm lower receiver, comprising:
- a firearm lower receiver having a top surface of a buffer tower and a trigger cavity portion;
- and
- a rotary tool comprising:
- an adapter including an extension portion configured to engage within a rotary power tool collet, the adapter having a major diameter;
- and
- a cutter head engaged with the adapter, the cutter head having a minor diameter less than the major diameter, and wherein an overall length of the rotary tool is configured to be greater than a distance between the top surface of the firearm lower receiver and a bottom of the trigger cavity portion of the firearm lower receiver.
3 more elements
Dependencies are inferred from the claim text.