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. 24, 2001
Filed:
Mar. 03, 2000
Applicant:
Inventor:
Jerrold Zindler, Brookline, MA (US);
Assignee:
Symmons Industries, Inc., Braintree, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/1065 ;
U.S. Cl.
CPC ...
F16K 1/1065 ;
Abstract
A novel non-scald mixing valve is provided of the type that utilizes a pressure-balancing piston to sense a change in the set flow conditions and automatically open or closes orifice to compensate for the change, the valve being characterized by the use of ceramic valving elements to provide both the valve shut-off function and the temperature-ratioing function. The ceramic valving elements fulfill the requirement that the positive shut-off function must be accomplished up-stream of the sensing pressure-balancing piston in order to avoid the use of check valves in the hot and cold water supplies.