Baths – closets – sinks – and spittoons – Flush closet – Tank only
Patent
1978-07-17
1981-06-30
Artis, Henry K.
Baths, closets, sinks, and spittoons
Flush closet
Tank only
4324, 4361, 4388, 4403, 4407, 4408, E03D 134, E03D 114, E03D 312
Patent
active
042754712
ABSTRACT:
This invention comprises an improved hydraulically operated flush valve for toilet flush tanks and similar devices. Its main components are a cylinder and piston assembly positioned with its longitudinal axis directly above and vertically aligned with the vertical axis of the outlet or flush tube of the flush tank. The moveable piston within the fixed cylinder acts as the moving and sealing element of the flush valve. By means of an inner valve connected to the flush tank operating lever hydraulic force is caused to lift the piston thereby opening the flush valve. There is no direct mechanical connection between the operating arm and the flush valve, and there are no chains or hinges. There is a positive permanent flush valve alignment and a minimum of friction. In addition, the amount of water used per flushing action can be regulated to prevent water and energy wastage.
REFERENCES:
patent: 399690 (1889-03-01), Newell
patent: 1568346 (1926-01-01), Ryan
patent: 2632180 (1953-03-01), Pegler
patent: 2644952 (1953-07-01), Boyd
patent: 3817279 (1974-06-01), Larson
patent: 3958281 (1976-05-01), Remmel
patent: 3987501 (1976-10-01), Anderson
patent: 3994029 (1976-11-01), Badders
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