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:
Sep. 07, 1993
Filed:
Nov. 25, 1991
Applicant:
Inventors:
William J Platt, Aston, PA (US);
Thomas E Rose, Dunwoody, GA (US);
Assignee:
National Rolling Mills, Inc., Frazer, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B44F / ; E04C / ; E04F / ; E04B / ;
U.S. Cl.
CPC ...
523112 ; 52312 ; 52664 ; 52667 ; 52484 ; 52488 ; 52727 ;
Abstract
A grid beam of inverted T cross section for a suspended ceiling is made from a first strip of metal. A second strip is secured in the bottom of the flange of the beam by flats from the first strip, so that a three-dimensional effect from essentially flat elements results. The second strip can be of a different color as well as a different material or texture than the first strip, so that additionally a color contrast, as well as a material or surface contrast, can be achieved.