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. 29, 1992
Filed:
Dec. 17, 1990
Applicant:
Inventor:
Alec W White, Hoffman Estates, IL (US);
Assignee:
American Colloid Company, Arlington Heights, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
112420 ; 28112 ; 112441 ; 1122621 ; 210679 ; 210681 ; 210688 ; 210807 ; 2105021 ; 210507 ; 210911 ; 405 16 ; 405 38 ; 405 53 ; 405270 ; 428102 ; 428192 ; 428234 ; 428235 ; 428241 ; 428243 ; 428283 ; 428300 ; 428340 ; 428913 ;
Abstract
A multi-layer article of manufacture includes an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of flexible sheet or fabric material wherein the two flexible layers of sheet or fabric material are structurally interconnected through the intermediate clay layer, such as by needle punching, after lubrication of the clay with a liquid, such as water, to interconnect fibers of one fabric layer to the other fabric layer at spaced locations over essentially the entire inner surface areas of both sheet or fabric material layers.