Liquid purification or separation – With program actuator
Patent
1990-08-15
1991-12-24
Jones, W. Gary
Liquid purification or separation
With program actuator
210159, 210162, 210413, B01D 2964
Patent
active
050749960
ABSTRACT:
Improved bar screen raking systems are provided with telescopical boom members, forming the rake arm controlling displacement up and down, in combination with a hydraulic piston rod cylinder, controlling displacement in and out. In one embodiment the raking system includes a telescopical rake arm boom comprising a boom member supporting a bearing slide and ball carrier, a cam follower and track arrangement in fixed spaced apart parallel disposition on opposing sides along the length of said boom, a boom side member connected to said bearing and cam arrangements for carrying a rake, a hydraulic piston driven cable device fixedly supported by said boom and parallel to said bearing slide and cam follower arrangements for controlling boom displacement up and down and a hydraulic piston rod cylinder device for controlling boom displacement in and out. In a second embodiment a raking system includes a telescopical rake arm boom comprising outer stationary axially disposed members, an inner axially disposed cylindrical telescopable member having a rake connected to one end and connected at the other end to an axially disposed ball screw arrangement for controlling displacement of said boom and rake up and down, and a hydraulic piston rod cylinder device for controlling boom displacement in and out.
REFERENCES:
patent: 4917796 (1990-04-01), Rudzinski
Galanty William B.
Kennedy Joseph
Franklin Miller, Inc.
Holland, Jr. Clay
Jones W. Gary
Savage Matthew O.
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