Process and apparatus for embrittling and subsequently removing

Details Process and apparatus for embrittling and subsequently removing Process and apparatus for embrittling and subsequently removing

1988-11-01

1990-09-11

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Differential fluid etching apparatus

With microwave gas energizing means

62 62, 83 15, 83170, 118315, 156 80, 156155, 156498, 156584, 225 935, 264 28, 4273983, B32B 3118, B32B 3122

Patent

active

049560425

ABSTRACT:
The protective coating on a pipe is embrittled and removed by enclosing a portion of the pipe in a body defining an annular space around the protective coating. A pressurized liquid nitrogen cryogen is expanded within this annular space for a sufficient time to lower the temperature of both the protective coating and the underlying pipe to a temperature below the temperature of embrittlement of the coating.

REFERENCES:
patent: 3878978 (1975-04-01), Martinek
patent: 3934379 (1976-01-01), Braton et al.
patent: 3936922 (1976-02-01), Blackstone et al.
patent: 4220012 (1980-09-01), Brister
patent: 4255216 (1981-03-01), Conant et al.
patent: 4267699 (1981-05-01), Bahrenburg
patent: 4312156 (1982-01-01), McWhorter
patent: 4487643 (1984-12-01), Ellett
patent: 4491484 (1985-01-01), Williams
patent: 4627197 (1986-12-01), Klee et al.
patent: 4654107 (1987-03-01), Ritter

Affiliated with

Also associated with

Rating

Process and apparatus for embrittling and subsequently removing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for embrittling and subsequently removing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for embrittling and subsequently removing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1182829