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:
Jul. 16, 1985
Filed:
Apr. 19, 1984
Applicant:
Inventors:
Robert A Lancaster, Littleborough, GB;
Noel C McKenzie, Rochdale, GB;
Brian Hargreaves, Flixton, GB;
Assignee:
T&N Materials Research Limited, Manchester, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B65D / ;
U.S. Cl.
CPC ...
428450 ; 428463 ; 428464 ; 428454 ; 524 35 ; 524431 ; 524443 ; 524445 ; 524449 ; 524456 ; 524492 ; 524538 ; 277227 ; 277D / ; 162142 ; 162146 ; 1621816 ; 1621818 ;
Abstract
Non-asbestos flexible sheet material suitable for use in gaskets for the cylinder head of an internal combustion engine is made by dewatering on a water-permeable conveyor a layer of aqueous slurry and compressing and drying the dewatered layer, the aqueous slurry employed being one that contains the following ingredients in the following proportions by dry weight: