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. 08, 1988
Filed:
Oct. 03, 1985
Applicant:
Inventor:
Patrick Roche, Upton, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; G01M / ;
U.S. Cl.
CPC ...
137559 ; 251208 ; 73168 ;
Abstract
A test assembly for water-flow alarms having a housing made up of two sections. One section includes a control valve, and the other section a viewing chamber. The control valve is capable of a passing water therethrough at two distinct flow rates, one of which being equivalent to the flow rate passing through the orifice of a sprinkler. The viewing chamber contains a uniquely designed sight module therein through which the flow of water can be viewed. By incorporating the test assembly within a sprinkler system it is possible to reliably test a water-flow alarm without activating the sprinkler within the system.