Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Patent
1992-01-09
1992-07-07
Bishop, Steven C.
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
144219, 144241, 407 54, B23C 510, B27G 1314
Patent
active
051277743
ABSTRACT:
A specialized, solid, cylindrical tool bit for cleaning uneven surface material from the bottom or floor of a dado channel previously cut in a workpiece. The bit operates at rotation speeds in excess of 10,000 revolutions per minute and has a cutting member having a cutting edge along only the bottom of the cutting member. The cutting edge has four cutting teeth spaced equidistant from each other and circumferentially close to an axis of rotation of the bit. The teeth and body member cooperate to dissipate the heat generated by the high speed rotation of the bit during the cleaning operation of the bit. The entire outer circumferential surface of the cutting member presents no cutting edge for engagement with the side walls of the channel cut in the workpiece. This tool bit performs the task of creating a perfectly flat plane on the bottom surface or floor of the dado channel. This function effects the advantage of promoting perfect dimensional symmetry throughout a finished casegood product assembled with dado joinery. The tool bit provides an advanced design in which the detailed concept of this process of accurizing a pre-manufactured dado channel complies with the mandatory demands of the industry, to perfect accuracy without extensive alteration of present joint manufacturing procedures.
REFERENCES:
patent: 1632440 (1927-06-01), Follett et al.
patent: 3656521 (1972-04-01), Czerniewicz
patent: 4412571 (1983-11-01), Czerniewicz
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