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:
Aug. 30, 1994
Filed:
Nov. 09, 1992
Rand H Ackroyd, Methuen, MA (US);
Watts Investment Company, Wilmington, DE (US);
Abstract
A temperature control flow valve has a body defining conduits for connection to sources of cold and hot water, a chamber for mixing the water, and a thermostat element for maintaining the temperature of the mixed water at or below a predetermined maximum temperature. The cold and hot water are combined through a mixing valve in a ratio adjusted continuously by means of the thermostat element to provide the mixed water at the predetermined temperature. The flow valve includes cold water and hot water pressure regulators responsive to the ratio of cold water to hot water pressures to substantially balance the pressure of the hot water and the pressure of the cold water delivered through the regulator.