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. 15, 1994
Filed:
Dec. 24, 1992
Gale E Sauer, Sinclairville, NY (US);
Armstrong World Industries, Inc., Lancaster, PA (US);
Abstract
A suspended grid system to support screw applied drywall ceilings. The system includes parallel rows of main runners suspended from the structural ceiling. Cross channel members are attached in parallel rows at right angles to the main runners. Drywall is screw attached to the lower surface of the cross channel members. Connectors are formed on the ends of the cross channel members which engage and lock to the main runners. Each such connector uses two upper latches and two lower tongue shaped stop shoulders. The lower stop shoulders will collapse in a controlled manner to relieve excessive compression as would be created from thermal expansion. The main runner will also provide a means for relieving thermal expansion.