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. 14, 1982
Filed:
Jul. 01, 1981
Applicant:
Inventors:
Brian Hargreaves, Manchester, GB;
Alan K Cousens, Cambridge, GB;
Assignee:
AMFU Limited, Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; D04D / ;
U.S. Cl.
CPC ...
428283 ; 428288 ; 428241 ; 428237 ; 428451 ; 428324 ; 428326 ; 428331 ; 428514 ; 1621816 ; 2772 / ;
Abstract
Flexible sheet material suitable for use in the manufacture of gaskets has a basis (85-95% by weight) of fine particles of a non-fibrous charged-layer-silicate mineral such as chlorite and includes a minor proportion (at least 2% but not more than 15% by weight of the material) of organic web-forming fibers, preferably cellulose fibers. The fine particles of the silicate mineral and the web-forming fibers are bound together with a synthetic rubber.