Rotary punch

Details Rotary punch Rotary punch

1984-01-19

1986-05-13

Bell, Paul A.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83 54, 83278, 409131, B23D 2500, B26D 300, B26D 520, B23C 300

Patent

active

045878749

ABSTRACT:
A pipe perforating apparatus has a spindle carrying a cutting tool and a drive for rotating the spindle about its own axis while revolving the spindle about the pipe. The cutter periodically engages and perforates the pipe. To provide for small, uniform sized holes in the pipe, the cutting tool is an end cutting punch and the spindle is rotated and revolved around the pipe to roll the punch into and out of the pipe without exerting a tangential force on the pipe.

REFERENCES:
patent: 3620115 (1971-11-01), Zieg et al.
patent: 3824886 (1974-07-01), Hegler
patent: 3831470 (1974-08-01), Maroschak
patent: 3877831 (1975-04-01), Maroschak
patent: 3916763 (1975-11-01), Maroschak
patent: 4180357 (1979-12-01), Lupke et al.

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