Patent ID: 7754073
Filing Date: 2010-07-13
Classification: B01D,E02F

Abstract:
1. Apparatus for removing materials settling in or suspending in liquid in a liquid reservoir, said apparatus comprising a float assembly, a suction head assembly substantially vertically beneath said float assembly, said suction head assembly including: guide means between said suction head assembly and said float assembly for guiding movement of said suction head assembly towards and away from said float assembly, said guide means including at least one upright elongated member, said at least one elongated member being pivotally connected at its lower end to one end of said suction head assembly, capturing means on said float assembly which capture said at least one elongated member to said float assembly but which permits said at least one elongated member to be raised and lowered relative to said float assembly, means for raising and lowering said suction head assembly relative to said float assembly, said raising and lowering means supporting and permitting operation of said suction head between a raised position in which said suction head assembly is located adjacent said float assembly, a lowered position in which said suction head assembly is adjacent to a floor surface of said reservoir and intermediate positions between said raised and lowered positions, said at least one upright elongated member further comprising depth indicating means for visually indicating the depth of operation of said suction head assembly, said apparatus being moveable in use in opposite directions in said reservoir.