US 12,005,513 B2
Shaper cutter heads and router bits with indexing feature
Henry Wang, Winter Springs, FL (US)
Filed by Henry Wang, Winter Springs, FL (US)
Filed on Oct. 18, 2023, as Appl. No. 18/489,111.
Application 18/489,111 is a continuation in part of application No. 17/308,744, filed on May 5, 2021, granted, now 11,839,922.
Prior Publication US 2024/0042532 A1, Feb. 8, 2024
Int. Cl. B23C 3/12 (2006.01); B23C 5/06 (2006.01); B23C 5/10 (2006.01); B27G 5/04 (2006.01)
CPC B23C 5/10 (2013.01) [B23C 3/12 (2013.01); B23C 5/06 (2013.01); B27G 5/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a cutting bit comprising a router bit or a shaper cutter head, comprising: a body;
and a cutter secured to the body; wherein when the cutting bit is installed in a woodworking machine the body is configured to rotate about a longitudinal axis;
wherein along the longitudinal axis: the cutter defines a concave or convex cutting-edge profile; the cutting-edge profile is symmetric about an axial midpoint of the cutting-edge profile that is equidistant from longitudinal ends of the cutting-edge profile; wherein relative to the longitudinal axis the axial midpoint is a radially inner most or a radially outermost point on the arcuate cutting-edge profile; and
wherein the body comprises a recess that defines a flat indexing surface that is disposed at a same axial position along the longitudinal axis as the axial midpoint, that protrudes radially outwards from a portion of the body, and wherein from the flat indexing surface a normal line extends that is parallel to the longitudinal axis.