Liquid purification or separation – Automatic control
Patent
1988-02-10
1989-07-25
Fisher, Richard V.
Liquid purification or separation
Automatic control
210159, 210162, B01D 3502, B01D 2938, E02B 508
Patent
active
048511145
ABSTRACT:
A bar screen cleaning apparatus in which a rake for cleaning the bar screen is raised and lowered by a transport system which includes an elongated flexible motor-driven train which transports the rake, a train track which extends substantially parallel to the bar screen at its lower end and curves at its upper end over the platform and a curved guide to maintain the train in engagement with the track and to guide the flexible train along the path of the curved track.
REFERENCES:
patent: 2128345 (1938-08-01), Briggs
patent: 2291103 (1942-07-01), Plummer
patent: 3482698 (1969-12-01), Ostnas
patent: 3591006 (1971-07-01), Daferner
patent: 4265750 (1981-05-01), Meunier
patent: 4392952 (1983-07-01), Fechter et al.
patent: 4472273 (1984-09-01), Hagihara
patent: 4725365 (1988-02-01), Albrecht, III
Evans Linda S.
Fisher Richard V.
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