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US 4,357,122 AGranted
Inserted blade end mill
AssigneeThe O.K. Tool Company, Inc.
InventorsThomas Hollis, Jr., Harold F. Armstrong
Life of this patent
Estimating the term…
Abstract
In inserted blade rotary end mills having tapered blades inserted in axially extending tapered sockets. The improvement of providing longitudinal interfitting serrations on opposed surfaces of both the inserted blades and sockets to prevent twisting of the blades in the sockets.
Claims3
An inserted blade end mill comprising:
- a cylindrical shank of a diameter between approximately one half and three inches;
- a cylindrical cutter-holding body of approximately the same diameter as the shank extending axially from the shank, the body having a plurality of cutter sockets with opposed walls tapered lengthwise toward the shank;
- and
- a tapered cutter blade slidingly received in each shank socket and having two faces engaging the socket walls;
- wherein both blade faces have longitudinal serrations and both opposed socket walls have longitudinal serrations interfitting with the blade serrations, the serrations on both the blade and the socket walls running in parallel planes whereby the blades may by slidingly received and wedged in the sockets in the direction of the serrations, the interengagement of serrations at both blade faces preventing rotation of the blade in its socket.
2 more elements
Dependencies are inferred from the claim text.