WC-cistern filling valve

Details WC-cistern filling valve WC-cistern filling valve

1996-03-04

1998-04-14

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137426, 137430, 137436, 137443, 138 42, 251126, F16K 3134, F16K 31385, F16K 4702

Patent

active

057381410

ABSTRACT:
The present invention relates to a WC-cistern filling valve comprising a liquid inlet assigned to a supply line, a liquid outlet assigned to the cistern, and a closing element which is assigned to a valve passage opening arranged between liquid inlet and oulet and which is switchable by a float in accordance with the liquid level in the cistern for opening and closing the valve passage opening. It is the object of the present invention to provide a low-noise WC-cistern filling valve. This object is achieved in that at least a portion of the liquid outlet is shaped as a thread in the flow direction downstream of the closing element in such a manner that liquid is discharged with a swirl from the liquid outlet to the cistern in the opened state of the closing element.

REFERENCES:
patent: 16848 (1857-03-01), McHenry
patent: 1734762 (1929-11-01), Clemmons
patent: 1901633 (1933-03-01), Clemmons
patent: 2323115 (1943-06-01), Bryant
patent: 2506152 (1950-05-01), Hunter
patent: 3095006 (1963-06-01), Smith
patent: 3194258 (1965-07-01), Grant
patent: 3605816 (1971-09-01), Nilsson
patent: 4106525 (1978-08-01), Currie et al.
patent: 4338964 (1982-07-01), Schoepe
patent: 4506423 (1985-03-01), Nakamura et al.
patent: 5280803 (1994-01-01), Swift et al.

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