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. 12, 1992
Filed:
Jun. 04, 1990
Applicant:
Inventors:
Ivan Diamond, Edgware, GB;
James J Lawson, Fenham, GB;
Walter J Lewicki, Jr, Lancaster, PA (US);
Stavros C Stavrinou, Nicosia, CY;
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428156 ; 428172 ; 428203 ; 428 44 ; 428 46 ; 428157 ; 428159 ; 428167 ; 428195 ; 428213 ; 428215 ; 428212 ; 428522 ; 4289133 ; 428207 ; 428204 ; 428192 ; 4289088 ;
Abstract
A tile product having a substantially non-porous vinyl composition base and a multilevel embossing and gloss which has a mechanically embossed mortar-line surround and which is free of gloss defects formed by pockets of air trapped between the wear layer and embossing mold during embossing is produced by applying a vacuum to the press during embossing. Preferably, the tile is laminated in a hot press heated by RF energy and cooled in a cold press to reduce the temperature of the wear layer to below its glass transition temperature.