U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Anti-scald faucet system

Patent 5931181 Issued on August 3, 1999. Estimated Expiration Date: Icon_subject June 19, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2009102

2264876

2296266

2808848

3536097

Fluid pressure balancing and mixing valve
Patent #: 4324267
Issued on: 04/13/1982
Inventor: Bach

Thermostatic mixer tap
Patent #: 4669653
Issued on: 06/02/1987
Inventor: Avelov

Mixing valve
Patent #: 4834130
Issued on: 05/30/1989
Inventor: North

Bidet with anti-scalding valve assembly
Patent #: 5431187
Issued on: 07/11/1995
Inventor: Nee

Hot and cold water mixing discharge device
Patent #: 5462224
Issued on: 10/31/1995
Inventor: Enoki, et al.

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Inventors

Assignee

Application

No. 879094 filed on 06/19/1997

US Classes:

137/100, Flow comparison or differential response137/599.12, Including mixing feature137/606, Valve in each inlet137/613, Flow path with serial valves and/or closures137/625.41Rotary valve

Examiners

Primary: Ferensic, Denise L.
Assistant: Farid, Ramyar

Attorney, Agent or Firm

International Class

G05D 011/00

Abstract

A faucet system includes a cold water control valve and a hot water control valve. These control valves are in communication with each other through a cold water supply conduit and a mixed water conduit. The hot water control valve includes a needle valve and a valve seat. The needle valve is adjustable with respect to the valve seat to adjust the maximum temperature of hot water being supplied by the hot water control valve to the mixed water conduit. In one embodiment, the hot water control valve of the faucet system further includes a pressure balancer disposed between the hot and cold water supply and the hot and cold control valves.

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