Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1998-02-24
2000-01-25
Upton, Christopher
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
210530, 210541, 152465, B01D 1200
Patent
active
060169249
ABSTRACT:
An apparatus for cleaning algae and debris from the weir, baffle, spillway, and effluent trough surfaces of a sedimentation water treatment tank. A main frame is mounted on the revolving skimmer arm of the tank. A pair of weir cleaning brushes mounted at a lower end of an articulated link arm assembly have bristles facing in inwardly opposed relation engage and clean both sides of the weir and move inward and outward relative to the center of rotation to compensate for out-of-round circular weir surfaces and pivot when their lower ends engage a bracket or obstruction so that they pass thereover and return to a vertical position. A sweeper connected with the weir cleaning brushes spans the space between the baffle and the weir and has elongate flexible strips that dislodge algae and debris and facilitate is passage through the weir and may also clean the surfaces of the baffle and weir. A vertical spillway cleaning brush and a vertical peripheral wall cleaning brush connected at the lower ends of respective support arms engage and clean the outer surface of the spillway and the inner surface of the peripheral wall and move in a horizontal inward and outward direction relative to the center of rotation of the skimmer arm to compensate for out-of-round and imperfect circular wall surfaces and pivot about a vertical axis should they contact an obstruction and then return the engaged position after passing over the obstruction.
REFERENCES:
patent: 2238024 (1941-04-01), Linch
patent: 2261487 (1941-11-01), Scott et al.
patent: 4043920 (1977-08-01), Wooh
patent: 4830748 (1989-05-01), Hall
patent: 4876010 (1989-10-01), Riddle
patent: 4978447 (1990-12-01), Hall
Roddy Kenneth A.
Upton Christopher
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