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U.S. Department of Energy
Office of Scientific and Technical Information

Oil tank skimming device

Patent ·
OSTI ID:6616094
A device is designed to expedite removal of residual water-immiscible oil from a large tank through a manhole entry in the side of the tank. It includes a trough which is inserted through the manhole and levelled, after which water fed into the tank floats the residual oil into the trough, from which the oil discharges from the tank through the manhole for recovery or disposal. (4 claims)
Assignee:
Gulf Oil Canada Ltd.
Patent Number(s):
US 3786826
OSTI ID:
6616094
Country of Publication:
United States
Language:
English