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:
Feb. 10, 1998
Filed:
May. 06, 1996
Ralph S Friedrich, Hermosa Beach, CA (US);
Paul Kubat, La Mirada, CA (US);
Ameron International Corporation, Pasadena, CA (US);
Abstract
A fire resistant sprinkler coupling for fire resistant composite pipe having a stainless steel pipe coupling having a first portion for attachment of a nozzle and a second portion adapted to receive a nipple. The nipple extends through a wall of the composite fire resistant pipe and into a stainless steel anchor sleeve for securing the pipe coupling to the composite fire pipe. An outer protective jacket is positioned on an outer surface of the composite fire steel sleeve and insulation pipe around the nipple and at least a portion of the pipe coupling. The outer protective jacket comprises a stainless steel sleeve and an insulation layer. Alternatively, the outer protective jacket includes a structural wall comprising layers of helically wound reenforcing fiber that is bonded together with a thermoset polymer resin selected from the group consisting of phenolic resins, siloxane-modified phenolic resins, furan resins, and mixtures thereof. At least one fire resistant layer is applied to the surface of the structural wall. The fire resistant layer includes a fibrous carrier component impregnated with a resin selected from the same group of resins used to form the structural wall. The fire resistant sprinkler coupling is mounted to the pipe wall to reduce the transfer of heat through the pipe wall during a fire.