Oldham Saw Company, Inc.

Michael M Sherman

Thomas H DeFelice

A cutter bit includes a body integrally formed with a mounting shank. The body is formed with a pair of chip boxes having an arcuate surface and a planar surface with a cutting knife mounted to each planar surface. A plurality of equally spaced recesses are formed in the body to reduce cutter bit weight, and to promote heat transfer from the cutter bit to the surrounding atmosphere. Adjacent recesses form annular ribs which extend circumferentially around the body from one cutting knife to the arcuate surface adjacent the other cutting knife. The arcuate ribs operate as heat exchanger fins by substantially increasing the outer surface area of the cutter bit thereby substantially increasing the rate of heat transfer from the cutter bit to the surrounding atmosphere. In other embodiments of the invention, the annular ribs are inclined to assist in removing chips from adjacent the area adjacent the cutting area to reduce chip load on the router bit, and assure that the user has a clear view of the cutting action. Alternatively, the annular ribs may be attached to form a helix extending circumferentially around the body to assist in chip removal.

Cutter bit

A merchandising case adapted for displaying and storing cutter bits includes a cabinet, storage rack within the cabinet, a door movably mounted on the cabinet for concealing the storage rack, and a display rack mounted on the front of the door for holding the cutter bits on display. The display rack will retain a plurality of cutter bits on a display rack behind a transparent safety plate and above a display area. The display area has a plurality of individual receptacles, each receptacle retaining a plurality of chips each of which contains a die cut edge emulating the kerf profile created by a corresponding router bit positioned on the display rack, above the receptacle retaining the specific chip. A customer can remove one or more of the chips from the receptacle and compare it to the cutting edge of other cutter bits, or lay it against a workpiece. Once the appropriate chip is chosen by comparing a plurality of chips, the corresponding bit is purchased by opening the door of the case, and removing the appropriate bit from a plurality of bits returned on the storage rack.

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Lockport, NY, United States of America

Michael M Sherman