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. 01, 1990
Filed:
Mar. 13, 1989
Applicant:
Inventors:
Melvin H Shaub, Lancaster, PA (US);
J Robert Herr, Millersville, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
52488 ; 52732 ; 52664 ;
Abstract
A runner system is provided to position a new ceiling over an existing ceiling and to position the new ceiling within a one to two inch space from the surface of the existing ceiling. Two z-shaped runners are fastened to the existing ceiling and ceiling boards will rest on the horizontal flanges of the z-shaped runners. A cross-runner is also designed to rest upon the horizontal flanges of the z-shaped runners and a projection and notch arrangement locks the cross-runners in position between the two adjacent z-shaped runners.