Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1993-05-10
1994-10-25
Drodge, Joseph W.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
137398, 210123, 2102421, 210800, B01D 2124
Patent
active
053586441
ABSTRACT:
A decanter apparatus and method of operating the same to decant liquid from adjacent the surface in a tank. The decanter apparatus includes a decanter receptacle having a top opening surrounded by a decanter rim, a decant pipe having an inlet end communicating with the decanter receptacle and a discharge end extending out the tank, and a float overlying the decanter receptacle and connected thereto for relative movement between a decanter closed position in which the float engages the decanter rim and a decanter open position in which the decanter rim is spaced below the float. The decanter receptacle when empty in the decanter closed position has sufficient positive buoyancy to buoyantly support the decanter assembly with the decanter rim above the surface of the liquid in the tank. The float has sufficient positive buoyancy to buoyantly support the decanter receptacle when the latter is in the decanter open position and filled with liquid. A decant valve outside the tank controls flow of liquid from the decanter and a priming valve outside the tank controls supply of priming liquid to the decanter receptacle. The decanter apparatus is operated through a decant cycle by operating the decant valve and priming valve.
REFERENCES:
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patent: 4601833 (1986-07-01), Shubert
patent: 4695376 (1987-09-01), Astrom et al.
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patent: 5036882 (1991-08-01), Norcross et al.
patent: 5104528 (1992-04-01), Christie
patent: 5106494 (1992-04-01), Norcross
patent: 5234580 (1993-08-01), Murphy
Aqua-Aerobic Systems, Inc.
Drodge Joseph W.
Pillote Vernon J.
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