Method and apparatus for conducting operation in pipe

Details Method and apparatus for conducting operation in pipe Method and apparatus for conducting operation in pipe

1989-01-27

1991-09-10

Schwartz, Larry I.

Gear cutting, milling, or planing

Milling

Means for internal milling

408130, 408 79, 166 55, 409185, 409190, 92146, B23C 300, E03F 306

Patent

active

050469037

ABSTRACT:
A method and an apparatus for conducting predetermined operations in the interior of a pipe with a cutter, in which the cutter is shifted so that a rotary axis of the cutter is angularly displaced about an axis extending along the pipe and is displaced in the axial direction of the pipe while the cutter is rotated about an axis extending in the axial direction of the pipe or about an axis extending in the radial direction of the pipe.

REFERENCES:
patent: 1358818 (1920-11-01), Bering
patent: 3485323 (1969-12-01), Vlinshi
patent: 4175471 (1979-11-01), Wilger et al.
patent: 4197908 (1980-04-01), Davis et al.
patent: 4222687 (1980-09-01), Williams
patent: 4442891 (1984-04-01), Wood
patent: 4577388 (1986-03-01), Wood
patent: 4630676 (1986-12-01), Long, Jr.
patent: 4648454 (1987-03-01), Yarnell
patent: 4657450 (1987-04-01), Forner et al.
patent: 4701988 (1987-10-01), Wood
patent: 4785512 (1988-11-01), Sigel
patent: 4819721 (1989-04-01), Long, Jr.

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