Rotary cutting device

Details Rotary cutting device Rotary cutting device

1975-11-04

1977-03-15

Husar, Francis S.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

29427, 90 11C, 408112, B23B 3500

Patent

active

040121615

ABSTRACT:
A rotary cutting device for removing spot welds includes an upper body section telescoping into a lower body section and a cutting bit secured in the upper body section and extending through the lower body section. The cutting bit has a flat cutting end so that a spot weld can be completely removed from one metal piece while causing no damage to the metal piece it is welded to. An expansion spring yieldably holds the cutting bit away from cutting engagement with a work piece when not in use. A stop means is provided for controllably limiting the potential downward movement of the cutting bit during use. Two pointed projections extend from the distal cutting end of the device for engaging the work piece to keep the device in proper alignment with the spot weld during cutting.

REFERENCES:
patent: 385133 (1888-06-01), Perkins
patent: 1603359 (1926-10-01), Schneckloth
patent: 2296087 (1942-09-01), Burns, Jr.
patent: 2430812 (1947-11-01), Goldberg
patent: 2527968 (1950-10-01), Sherman et al.
patent: 2918833 (1959-12-01), Stewart et al.
patent: 3015240 (1962-01-01), Hodnett

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