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:
Jul. 05, 1994
Filed:
Aug. 21, 1992
Applicant:
Inventors:
John S Forry, Lancaster, PA (US);
Chester W Hallett, Lancaster, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
5230915 ; 5230916 ; 52729 ; 527321 ; 527317 ; 5250607 ;
Abstract
The present invention relates to ceiling grid runners and associated assembly details that utilize metal reinforcement of thermoplastic compounds in order to obtain the necessary stiffness required to meet load/deflection standards for suspended ceiling systems. The metal is strategically positioned at the areas of highest stress, the top and bottom of the runner cross-section in what is analogous to the bulb and flange of traditional all metal grid.
Forry, John. (1994). Composite ceiling grid (U.S. Patent No. 5325647). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5325647
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile