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

Mixing fixture for flexible-pipe spray head

Patent 4827538 Issued on May 9, 1989. Estimated Expiration Date: Icon_subject February 5, 2007. 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

1532433

1595311

2173064

2903710

3056418

3286721

Push button controlled water system
Patent #: 4189792
Issued on: 02/26/1980
Inventor: Veach

Faucet valve with anti-siphon back flow preventer Patent #: 4696322
Issued on: 09/29/1987
Inventor: Knapp ,   et al.

Inventors

Assignee

Application

No. 07/011167 filed on 02/05/1987

US Classes:

4/677, Having only one actuating means137/217, Valved137/526, Vacuum relief type137/533.21Guide stem

Examiners

Primary: Recla, Henry J.

Attorney, Agent or Firm

International Classes

F16K 24/02 (20060101)
F16K 24/00 (20060101)
F16K 11/06 (20060101)
F16K 11/078 (20060101)
E03C 1/04 (20060101)
E03C 1/10 (20060101)

Foreign Application Priority Data

1986-02-05 DE

Abstract

A faucet for mixing hot and cold water especially for a wash fixture, wash bowl or the like comprises a faucet housing connectable to hot and cold water supply pipes having a mixing or outlet chamber which is connected with a water outlet piece which is a withdrawable shower hose outlet. An aerating device responding to low pressure in the chamber which prevents a reverse suction of dirty water by the faucet is integrated in the faucet housing with the mixing or outlet chamber connected with it. This aerating device at least comprises one closure member pressed at least by the force of gravity into the closed position. The weight of the closure member is so chosen that the closure member is drawn into the open position with a lower pressure in the mixing or outlet chamber and communicates between the mixing or outlet chamber and/or the supply pipes and the atmosphere to supply air to the system.

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