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:
Nov. 01, 1977
Filed:
Dec. 29, 1975
Applicant:
Inventors:
John R Garrick, Lancaster, PA (US);
Ray C Kendig, Lancaster, PA (US);
Assignee:
Armstrong Cork Company, Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B05D / ;
U.S. Cl.
CPC ...
428134 ; 52144 ; 427180 ; 427197 ; 427284 ; 427286 ; 428192 ; 428194 ;
Abstract
The edge of a ceiling tile adjacent the fissured or embossed face of the ceiling tile is provided with a powder coating. The ceiling tile is formed from a fibrous board which has an open pore structure, and powder is dusted on the edge of the ceiling tile and is mechanically held in the open pore structure of the ceiling tile. The powder coating covers the upper edge of the ceiling tile with a coating so as to eliminate the dark edge effect secured when two ceiling tiles are in position with their front planar surfaces not quite in the same plane.