Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1993-08-23
1994-08-23
Upton, Christopher
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
210528, 210541, B01D 2118
Patent
active
053404823
ABSTRACT:
A tank is provided with an outer cylindrical wall having a vertical axis, and a bottom wall. A cylindrical scum baffle is located inward of the outer cylindrical wall. A support structure extends from the outer cylindrical wall to the vertical axis of the tank. A support pier extends from the bottom wall of tank upward at the vertical axis. A skimmer truss extends from an upper end of the support pier outward for rotation. A drive is supported by the support pier for rotating the skimmer truss. A cylindrical retaining wall is located inwardly from the scum baffle. A scum trough extends between the scum baffle and the retaining wall generally along a radial line from said vertical axis and is located below the skimmer truss. The scum trough has two generally parallel side walls and ramps having leading and trailing edges generally parallel to the scum trough walls. An elongated skimmer is supported by the skimmer truss for rotation with the skimmer truss. A guide is supported by the support structure and is located above the scum trough and the skimmer truss. An arm is supported by the skimmer truss for pivotal movement relative to the skimmer truss. One end of the arm extends downward and is connected to the skimmer, and the other end is located to enter the guide and to position the skimmer generally parallel with the leading edge of the scum trough as the skimmer approaches the scum trough.
REFERENCES:
patent: 3371788 (1968-03-01), Smith
patent: 3919090 (1975-11-01), Shaffer
patent: 4462909 (1984-07-01), Kennel
patent: 5200079 (1993-04-01), Schwartz et al.
B-W Fabricators, Inc.
Upton Christopher
Zobal Arthur F.
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