# US 6,341,731 B1 · Thermostatic mixing valve with sequential manual control

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- Number: US 6,341,731 B1
- Document ID: US6341731B1
- Status: Granted
- Kind: B1
- Application number: 09/646,974
- Filed: 2000-09-25
- Granted: 2002-01-29
- Earliest claimed: 2000-09-25
- Web page: https://patentgrep.com/patent/US6341731B1

## CPC

- G05D 23/1353: {combined with flow controlling means}
- Y10T 137/86525: Flow combining with flow dividing
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A thermostatic regulator (30) for a single handle mixer valve (12) has a sensor (32) mounted in a mixed water chamber (34) for sensing the temperature of the outlet water. The sensor is connected to a valve (20) that is mounted in the cold water supply line (18) to restrict the availability of cold water when the water in the hot water line (16) is down below a set temperature.