Pipe drilling apparatus

Details Pipe drilling apparatus Pipe drilling apparatus

1990-03-05

1991-09-24

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Having tool-opposing, work-engaging surface

408 16, 408135, 408111, 408112, 74 8917, 33371, B23B 4900

Patent

active

050510444

ABSTRACT:
An apparatus which is used to enhance the capability of in situ drilling of holes in existing pipes or other conduits, or virtually any cylindrical object. The apparatus includes a mounting unit which rests upon the pipe to be drilled and a drill mounting apparatus. The drill mounting apparatus is removably mounted to the mounting unit. The drill mounting apparatus is adapted to receive and position a drilling device which forms a hole in the pipe or the like.

REFERENCES:
patent: 256337 (1882-04-01), Lawrence
patent: 2997900 (1961-08-01), Pugsley
patent: 3922107 (1975-11-01), Fowler
patent: 3967687 (1976-07-01), Fowler
patent: 4094612 (1978-06-01), Krieg
patent: 4572715 (1986-02-01), Wolff
patent: 4936720 (1990-06-01), Dolatowski et al.

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