Method and apparatus for removing protective coating from pipe s

Details Method and apparatus for removing protective coating from pipe s Method and apparatus for removing protective coating from pipe s

1983-12-23

1984-12-11

Dawson, Robert

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

62 64, 83 15, 83170, 156155, 156344, 156498, 225 1, 225 935, 264 28, 4273983, B32B 3124

Patent

active

044876432

ABSTRACT:
Access to a pipe section which is surrounded by a protective coating is achieved by enclosing the pipe section in a sleeve and then flowing a refrigerant fluid through the sleeve to render the protective coating brittle. The brittle coating can then be easily broken by means of an impacting hammer, or the like, to provide access to the pipe section.

REFERENCES:
patent: 2956717 (1960-10-01), Scharf
patent: 3623337 (1971-11-01), Tremont
patent: 3744262 (1973-07-01), Bose
patent: 3878978 (1975-04-01), Martinek
patent: 3936922 (1976-02-01), Blackstone et al.
patent: 4112795 (1978-09-01), de Putter
patent: 4220012 (1980-09-01), Brister
patent: 4255216 (1981-03-01), Conant et al.
patent: 4267699 (1981-05-01), Bahrenburg
patent: 4338970 (1982-07-01), Krackeler et al.
patent: 4370862 (1983-02-01), Brister

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