Automated separator of light fluids by specific gravity
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Mar 4, 1997
filing date -
Mar 4, 1997
priority date (Note) -
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Abstract
The automatic grease separator receives wastewater containing grease and other light fluids, separates the water portion from the light fluids portion, and stores the light fluids portion. A computer is used to control the operation of separator functions including automatic transfer of light fluids from the separator to grease containers and automatic shut-down of the separator when its capacity is exceeded. Warning devices which indicate malfunction or the need for maintenance also are controlled by the computer. The grease separator uses grease level sensors based on capacitive level sensing. These sensors are insensitive to coating of the sensors by grease and oil. The grease and other light fluids are maintained in a fluid phase by the thermostatic-controlled addition of hot water. This feature provides an added element of safety by eliminating the need to heat the separator by a resistant heater which introduces the possibility of a grease fire.
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