The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1984
Filed:
Dec. 23, 1983
Applicant:
Inventor:
William A Ellett, Monroe, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 80 ; 62 64 ; 83 15 ; 83170 ; 156155 ; 156344 ; 156498 ; 225-1 ; 225 935 ; 264 28 ; 4273983 ;
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.