F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
117/100, 189/12,
F16L 55/18 (2006.01) B08B 7/00 (2006.01) B08B 9/02 (2006.01)
Patent
CA 1226181
ABSTRACT OF THE DISCLOSURE 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.
470332
Ellett William A.
Perley-Robertson Hill & Mcdougall Llp
LandOfFree
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