Dual flush cistern mechanism

Details Dual flush cistern mechanism Dual flush cistern mechanism

1988-09-27

1989-11-28

Artis, Henry K.

Baths, closets, sinks, and spittoons

Flush closet

Manual selection of the amount of flush

4325, 4381, 4383, 4390, 4415, E03D 114, E03D 312

Patent

active

048827932

ABSTRACT:
The present invention discloses a dual flush cistern mechanism in which a hollow central stem functions as a flush valve operating member, a slide for a float and an overflow pipe. The float is retained on the stem by a releasable latch during normal operation. During reduced volume flush operation the latch is released, the float drops with the level of water in the cistern sliding along the raised stem until it strikes a projection thereby lowering the stem and prematurely closing the flush valve.

REFERENCES:
patent: 3153247 (1964-10-01), Walsh
patent: 3968525 (1976-07-01), Alexander
patent: 4032997 (1977-07-01), Phripp et al.
patent: 4527296 (1985-07-01), Musgrove
patent: 4651359 (1987-03-01), Battle

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