Fluid operated waste tank servicing assembly

Details Fluid operated waste tank servicing assembly Fluid operated waste tank servicing assembly

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

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