Baths – closets – sinks – and spittoons – Flush closet – Tank only
Patent
1987-03-30
1988-09-20
Artis, Henry K.
Baths, closets, sinks, and spittoons
Flush closet
Tank only
4321, 4323, 4400, 4407, 251144, 251294, E03D 134
Patent
active
RE0327506
ABSTRACT:
A hydraulically operated drain valve is interposed in the cleaning fluid path before the spray/rinse outlet. The fluid under pressure activates a piston which operates the drain valve. A precharge reservoir is also interposed in the supply line before the spray rinse outlet to store a measured precharge which drains into the tank after the drain valve has closed. A manual override is provided to open the drain valve in the event of a failure of the hydraulic system.
REFERENCES:
patent: 737941 (1903-09-01), Leithausar
patent: 1458816 (1923-06-01), Fyte et al.
patent: 2838765 (1958-06-01), Hosking
patent: 3447777 (1969-06-01), Carlson
patent: 3677294 (1972-07-01), Gibbs et al.
patent: 4017015 (1981-12-01), Judd
patent: 4304015 (1981-12-01), Hubatka
patent: 4338689 (1982-07-01), Zieg
Colditz Eugene F.
Grills Laurence M.
Artis Henry K.
Kaiser Aerospace & Electronics Corporation
Kleinberg Marvin H.
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