Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means
Patent
1992-02-25
1992-11-03
Silverman, Stanley S.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
With rehabilitation means
210293, 210793, B01D 2424, B01D 2446
Patent
active
051606143
ABSTRACT:
An air duct block for air/water underdrain systems in gravity filters comprising a row of interconnected air duct blocks positioned below the filtering media and extending transversely to the underdrain laterals. Each air duct block is in communication with at least one adjacent individual underdrain filter block to supply backwash gas thereto during backwashing operations, thereby supplying backwash gas to its associated lateral. Each air duct block is in further communication with at least one adjacent air duct block such that backwash gas flows between the interconnected air duct blocks and along the row of air duct blocks. This system supplies backwash gas to the entire underdrain system through a single pipe from a source of supply.
REFERENCES:
patent: 2378239 (1945-06-01), Myron
patent: 2559936 (1951-07-01), Buffle
patent: 2710692 (1955-06-01), Kegel et al.
patent: 3110667 (1963-11-01), Stuppy
patent: 3468422 (1969-09-01), Camp
patent: 3512649 (1970-05-01), Nebolsine et al.
patent: 3831761 (1974-08-01), Chantereau
patent: 3954620 (1976-05-01), Nebolsine
patent: 4064050 (1977-12-01), Heaney et al.
patent: 4065391 (1977-12-01), Farabaugh
patent: 4118322 (1978-10-01), San Roman
patent: 4214992 (1980-07-01), Sasano et al.
patent: 4331542 (1982-05-01), Emrie
patent: 4619765 (1986-10-01), Roberts
patent: 4707257 (1987-11-01), Davis et al.
patent: 4795555 (1989-01-01), Wurster
patent: 4923606 (1990-05-01), Gresh et al.
patent: 5087362 (1992-02-01), Brown
patent: 5108627 (1992-04-01), Berkebile et al.
Nessler Cynthia L.
Silverman Stanley S.
The F.B. Leopold Company, Inc.
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