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:
May. 10, 1994
Filed:
May. 18, 1992
Applicant:
Inventors:
David L Holland, Friendswood, TX (US);
Charles M Nelson, Houston, TX (US);
Thomas M Miller, Walnut, CA (US);
Jay C First, Houston, TX (US);
Assignees:
Rock Wool Manufacturing Co., Leeds, AL (US);
Mineral Products and Technology, Inc., Leeds, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; F16L / ;
U.S. Cl.
CPC ...
428167 ; 428158 ; 428159 ; 428172 ; 428210 ; 428212 ; 428284 ; 4283184 ; 1381181 ; 138128 ; 138137 ; 138151 ; 138158 ; 52727 ; 52737 ;
Abstract
Flat, rectangular composite insulation comprising two dissimilar insulating materials on a separate flexible backing material is described. At least one of the two dissimilar materials is rigid. V-grooves are formed in the dissimilar materials extending from the surface of the insulation opposite of the flexible backing up to, but not through the flexible backing. The V-grooving permits the rigid composite insulation to be fitted to a curved surface such as a pipe.