Liquid purification or separation – Structural installation – Closed circulating system
Reexamination Certificate
2006-03-28
2006-03-28
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Structural installation
Closed circulating system
C210S223000, C210S232000, C210S538000, C134S109000, C134S110000
Reexamination Certificate
active
07018528
ABSTRACT:
A portable purifying system for improved filtering and/or separating of cleaning solutions such as solvents, particularly those used in parts washers. The purifying system utilizes a removable reservoir to provide a smaller reservoir within a larger reservoir such as a parts washer. The portable purifying system provides an apparatus and method of use to perform the following steps: using re-circulating solvent from the larger reservoir, washing oily parts in such manner that oily residue from the washed parts is deposited in the smaller reservoir; separating cleaner portions of solvent from dirtier portions of solvent within the smaller reservoir using density differences to separate by gravity action cleaner portions from dirtier portions; moving the cleaner portions of solvent into the larger reservoir; and periodically emptying and cleaning the smaller reservoir.
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Prince Fred G.
Stoneman Martin L.
Stoneman Law Offices, Ltd.
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