Cutting – By tool inside hollow work – One tool having only rectilinear motion
Patent
1997-10-09
2000-03-07
Rada, Rinaldi I.
Cutting
By tool inside hollow work
One tool having only rectilinear motion
83178, 83 54, 83613, 836392, B23D 2114
Patent
active
060325593
ABSTRACT:
A pipe punch apparatus which generally comprises a punch housing, a punch means situated within the punch housing, and a collar. The punch housing is connected to a bi-directional hydraulic fluid pump means. Depending on which direction the pump is set, the pump releases fluid into the punch housing which causes the punch means to either extend from the punch housing or retract into the punch housing. The collar is connected to the punch housing by a connecting means so that a notch within the collar receives the punch means when the punch means is in the extended position. The parts are also relatively situated so that positioning the punch housing within a pipe will cause the collar to be located exterior to the pipe. Thus, as the punch means moves from its initial retracted position to its extended position, it will also punch a hole through the pipe. Because the build up of hydraulic pressure which causes the punch means to move is gradual, no friction or heat, or only a negligible amount, is generated by the punching action. Functionally applying the pipe punch apparatus discloses a method for punching holes in pipes.
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Rada Rinaldi I.
Vaughn T. Anthony
LandOfFree
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