Mixing valve of single lever type provided with a device for pre

Details Mixing valve of single lever type provided with a device for pre Mixing valve of single lever type provided with a device for pre

1995-04-03

1996-11-05

Rivell, John

Fluid handling

Systems

Multi-way valve unit

1376254, 251 54, 251285, 251288, F16K 11078, F16K 3172

Patent

active

055707203

ABSTRACT:
A single-lever mixer valve for liquids, for example hot and cold tap water. The valve comprises a housing, which is provided with an inlet for each of said liquids and a common outlet. A lever is provided for controlling the amount and the temperature of the liquid flowing out through the outlet. The lever is connected to an actuator in the valve housing that cooperates with a valve member. The lever includes an adjustable spring loaded stop to provide a temporary increase of fluid flow when pressed against a stop surface. The actuator is provided with a built-in closing damper, including at least one sealed chamber and a movable piston for forcing an amount of fluid from the chamber via a throttling member when the lever is closed. When the fluid pressure in the chamber exceeds a certain value, the throttling member is elastically deformed and pressed progressively against a sealing face in the actuator for reduction of hydraulic shock waves related to rapid closing of the mixer valve.

REFERENCES:
patent: 2781519 (1952-09-01), Marchant
patent: 4112966 (1978-09-01), Carlson
patent: 4610272 (1986-09-01), Gottwald et al.
patent: 4708172 (1987-11-01), Riis
patent: 4715406 (1987-12-01), Kress
patent: 4723574 (1988-02-01), Bergmann et al.
patent: 4733688 (1988-03-01), Lorch et al.
patent: 4736772 (1988-04-01), Ostertag et al.
patent: 4768749 (1988-09-01), Oberdorfer
patent: 4936347 (1990-06-01), Oracz et al.
patent: 5082023 (1992-01-01), D'Alayer de Costemore d'Arc
patent: 5413144 (1995-05-01), Riis

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