Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1994-09-28
1996-08-20
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134166R, 134169R, 1341041, B08B 908
Patent
active
055475140
ABSTRACT:
An apparatus mounted on a vehicle frame for cleaning liquids and solids from a sub-surface enclosure. The apparatus comprises a water tank having a drain valve and a feed valve. A water pump is connected to the feed valve that supplies water to a high pressure cleaning device used for loosening waste solids in the sub-surface enclosure. A suction pump connected to a suction hose removes the waste from the sub-surface enclosure and directs it to either of two waste tanks through a valve configuration comprising an inlet valve connected to one waste tank and a second inlet valve connected to the other waste tank. The two inlet valves selectively allow the waste removed from the sub-surface enclosure to enter either the first waste tank, the second waste tank or both. A method for cleaning the sub-surface enclosure is also provided.
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Harwood Ray E.
Ward Stephen W.
Pacific Gas and Electric Company
Stinson Frankie L.
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