Boring apparatus

Details Boring apparatus Boring apparatus

1989-02-27

1990-09-11

Neuder, William P.

Wells

Means for perforating, weakening, bending or separating pipe...

Cutter rotates circumferentially of pipe

409143, E03F 300

Patent

active

049559516

ABSTRACT:
An apparatus for boring a hole, which affords communication between a first member and a second member connected to the first member, in the first member, comprises cutting means hvaing a rotary axis, first drive means for shifting the cutting means along a first axis extending in the direction orghogonal to the rotary axis, second drive means for shifting the cutting means along a second axis orghogonal to the rotary axis and first axis, third drive means for rotating the cutting means about the rotary axis, detecting means for detecting a load acting on the cutting means and control means for controlling the first and second drive means to correct the position of the cutting means on the basis of a detecting signal provided from the detecting means so as to prevent an overload from acting on the cutting means.

REFERENCES:
patent: 4197908 (1980-04-01), Davis et al.
patent: 4442891 (1984-04-01), Wood
patent: 4577388 (1986-03-01), Wood
patent: 4648454 (1987-03-01), Yarnell
patent: 4785512 (1988-11-01), Sigel
patent: 4819721 (1989-04-01), Long, Jr.

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