Cleaning and liquid contact with solids – Processes – Combined
Patent
1994-01-28
1995-05-23
Andrews, Melvyn J.
Cleaning and liquid contact with solids
Processes
Combined
134 10, 134 11, 134 12, 134 26, 134 35, 134 40, 134 57R, 134 951, 1341023, 134105, B08B 300, B08B 304, B08B 310
Patent
active
054177693
ABSTRACT:
An automated open topped apparatus and improved method for cleaning soil from metal parts which employs a low vapor tension, low density, LVTC, liquid cleaner in a first tank and a high vapor tension, higher density, immiscible rinse, HVTR, liquid in a second tank and a rinse vapor zone above both tanks in the apparatus which provides steps and means for preventing rinse vapor loss during shut down periods by using microprocessor controlled steps that cause a layer of the liquid cleaner to be positioned atop and cover the liquid rinse in its tank and at the end of the idle period returns the liquid cleaner cover to the first tank and re-starts the cleaning process and thereafter monitors and controls cleaning operation until the succeeding shut down period.
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Gerard Donald R.
Hook William J.
Pennington Charles A.
Richardson, II Robert J.
Andrews Melvyn J.
Detrex Corporation
El-Arini Zeinab
Waldrop Neal A.
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