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:
Sep. 14, 1976
Filed:
Sep. 29, 1975
Applicant:
Inventors:
Richard F Shannon, Lancaster, OH (US);
Paul H Scheuerle, Dallas, TX (US);
Assignee:
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
425 85 ; 425394 ; 425352 ; 425412 ; 4254 / ; 425423 ;
Abstract
A greater percentage of hole area is provided in opposite leg portions of the semi-cylindrical perforated backing plate of either the core or the pressing head of a mold box assembly, used in the pressing of a slurry into semi-cylindrical bodies of lightweight thermal insulation for pipe, than in the crown portion connecting the leg portions. More uniform density is thereby provided in the pieces of insulation, and breakage during handling before curing is greatly reduced.