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:
Mar. 10, 1987
Filed:
Oct. 30, 1985
George S Pieczykolan, North Wales, PA (US);
Central Sprinkler Corporation, Lansdale, PA (US);
Abstract
Quick release valve for a sprinkler head having a frame adapted to support a thermal responsive actuating element. The quick release valve includes a saddle adapted to contact an end of the actuating element, a bushing having a first surface portion adapted to face the flow passage wall of the frame and a second surface portion adapted to face the saddle, an O-ring for sealing the interface between the flow passage wall and the bushing first surface portion, and another O-ring for sealing the interface between the saddle and the bushing second surface portion. The bushing is axially displaceable within the flow passage. A split retaining ring is insertable in the flow passage to axially displace the bushing so as to exert a compressive preload on the actuating element.