Method and apparatus for performing remotely-manipulated work on

Details Method and apparatus for performing remotely-manipulated work on Method and apparatus for performing remotely-manipulated work on

1985-03-29

1987-06-23

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Machine including plural tools

Coaxial tools

144205, 409197, B23C 302

Patent

active

046749268

ABSTRACT:
The invention is directed to a method and apparatus for performing remotemanipulated work on a conduit of a nuclear facility. The method of the invention is for maintaining pipe conduits in a radioactively contaminated cell such as a large-area cell of a reprocessing facility for irradiated nuclear fuel. The defective conduit portion to be removed is sawn out of a conduit and a replacement conduit segment is welded into the conduit. In order to provide for rapidly and accurately welding the replacement conduit segment into the conduit, the step of machining the two conduit end portions is combined with the step of determining the inside dimension between the conduit end portions formed by the step of sawing out the defective conduit portion. An apparatus for carrying out the method of the invention is also disclosed.

REFERENCES:
patent: 2526762 (1950-10-01), Miller
patent: 3552265 (1971-01-01), Lucas
patent: 4289430 (1981-09-01), Shashaty

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