Liquid purification or separation – Structural installation – Closed circulating system
Patent
1987-04-30
1991-04-16
Silverman, Stanley
Liquid purification or separation
Structural installation
Closed circulating system
210240, 210289, 2103232, 210346, 2104162, B01D 2913
Patent
active
050080083
ABSTRACT:
A universal swimming pool water filter apparatus for a bottom opening tank comprising multiply useful dual reverse flow port means and cooperating filter medium support having various filtered water passing openings arranged to accommodate fixed cloth or free particulate filtering media, the port means flow being varied with the type of filtering medium support so that a minimum of different production parts are needed to meet all filtering needs, with a consequent reduction in manufacturing equipment and parts inventory.
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patent: 3767050 (1973-10-01), Reiner
patent: 4610787 (1986-09-01), Morgan et al.
McCarthy Neil M.
Plantamura Arthur J.
Silverman Stanley
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