Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages
Reexamination Certificate
2007-02-27
2007-02-27
Stinson, Frankie L. (Department: 1746)
Cleaning and liquid contact with solids
Apparatus
For work having hollows or passages
C134S16900A, C239S581100, C004S490000
Reexamination Certificate
active
10873093
ABSTRACT:
A system for cleaning components of one or more water retaining devices (e.g., tubs) includes two pumps, a tank, one or more supply valves, a water retaining device, and control circuitry. The pumps control the flow of a concentrated cleaning agent and water to the tank. The tank stores the cleaning agent and water as a diluted cleaning solution at a desired pressure, and selectively dispenses the diluted solution to the tub(s) through appropriate piping. The supply valve(s) controls the flow of cleaning solution to components of the tub. The tub includes a water propulsion device (e.g., jet) configured to facilitate efficient cleaning of the propulsion device's various surfaces. The control circuitry controls the operation of the pumps and preferably the supply valve(s) in accordance with a predetermined cleaning procedure. The system may optionally include an outflow device to prevent premature evacuation of the cleaning solution from the tub's components.
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Euorpean Patent Office 0 312 953 Oct. 1988.
Brinkley, Morgan et al.
Crilly Daniel C.
Crosby Kevin P.
Stinson Frankie L.
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