Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1991-03-29
1992-05-05
Spear, Frank
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
137 99, 210134, 210137, B01D 35027
Patent
active
051104580
ABSTRACT:
The mixer and fluid filtering unit is connectable to a source of a first or base fluid under pressure and to a source of a second fluid or solute which may be a solute pumping unit. The base fluid flows into a mixer section through a first inlet, and a small proportion of the base fluid is diverted into a filter section where it is filtered and passed out as motive fluid for the solute pumping unit. The remainder of the base fluid flows through a compensating valve assembly and into the mixer section where it is mixed with solute by a fluid pressure operated ratio valve assembly which maintains a variable preset mixing ratio. A sensor connected to the compensating valve assembly senses filter pressure drop and adjusts the compensating valve assembly in accordance therewith.
REFERENCES:
patent: 3865126 (1975-02-01), Baggaley
patent: 3934604 (1976-01-01), Sanderson et al.
patent: 4369805 (1983-01-01), Tavor
patent: 4651765 (1987-03-01), Beth
patent: 4832072 (1989-05-01), Hechler, IV et al.
Hechler, IV Valentine
Schwall Edward A.
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