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. 09, 1996
Filed:
Aug. 01, 1994
James W Mears, Warwick, RI (US);
Grinnell Corporation, Cranston, RI (US);
Abstract
A fire protection sprinkler is coupled to a pressurized fire extinguishing fluid supply line and positioned generally above a predetermined area to be protected against damage by fire. The sprinkler has a body with an inlet and at least one outlet, a divider defining bias and outlet chambers within the body, and a pilot valve assembly, forming an integral part of the body, is in communication with the bias chamber. The divider has a first 'off' position substantially preventing fluid from exiting the outlet chamber and a second 'on' position allowing fluid flow from the outlet chamber to be distributed over the area being protected. The pilot valve assembly includes a thermally responsive sensing element, e.g. a bimetal snap disc, disposed in a relatively horizontal plane generally below a main portion of the body for exposure to heat from all regions of the predetermined area to be protected by the sprinkler device.