Cleaning and liquid contact with solids – Apparatus – With treating fluid purifying or separating means
Reexamination Certificate
2011-07-19
2011-07-19
Stinson, Frankie L (Department: 1711)
Cleaning and liquid contact with solids
Apparatus
With treating fluid purifying or separating means
C134S201000, C210S611000, C435S264000
Reexamination Certificate
active
07980257
ABSTRACT:
Provided is a parts washer that includes a multi-tiered basin, a cleaning fluid and a biological component, living within the fluid, that breaks down organic waste. The multi-tiered basin includes a sink member with a false bottom, and a support grid and filter are interposed between the false bottom and a bottom panel of the sink member. The false bottom, support grid, and filter are readily removable from the sink member. The tank is partially filled with the cleaning fluid and a pump and conduit assembly direct a flow of the cleaning fluid to the basin. The cleaning fluid discharged into the basin flows through a drain hole in the false bottom, through the filter and support grid, and then through a drain hole in the bottom panel of the sink member back into the tank for reuse. The cleaning fluid includes, at least, a surfactant that functions to remove organic waste from the parts being washed. The biological component within the cleaning fluid includes nonpathogenic microorganisms that break down the organic waste. The cleaning fluid is not toxic to the microorganisms. The pump and conduit assembly, in addition to aiding in the removal of organic waste, functions to aerate the cleaning fluid to maintain a proper environment for the microorganisms. A heater, thermostat, and level control assembly function to maintain the cleaning fluid within a certain temperature range so as to aid in the removal of organic waste and maintain a proper environment for the microorganisms.
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McClure James C.
McNally Thomas W.
Duane Morris LLP
Stinson Frankie L
Zymo International, Inc.
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