Filter leaf construction

Details Filter leaf construction Filter leaf construction

1981-01-09

1982-09-07

Wyse, Thomas G.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210499, B01D 3912

Patent

active

043482848

ABSTRACT:
A pressure or vacuum filter leaf for use in separating solids from liquids includes a filter medium which is constructed of a pair of filtering screens each having a plurality of widely spaced support wires, and a plurality of closely spaced surface wires extending generally perpendicular to the support wires and connected thereto along one side of the support wires. The surface wires have a wedge shaped cross-section with the apex of the wedge connected to the support wires. The opposite flat surface of the wedge of each surface wire is disposed in a flat plane with the spacing between each surface wire forming narrow filtering slots extending along the plane. The filtering screens are connected together in opposed relationship with the surface wires of each screen in spaced relation to form an internal chamber. The flat surfaces thereof face away from each other and the support wires of each screen are disposed between the surface wires of the screens. A binder extends around the entire periphery of the filtering screens and seals the periphery against flow of liquid therethrough. A filter outlet is connected to the binder and has an opening in communication with the internal chamber to permit passage of the fluid from the internal chamber.

REFERENCES:
patent: 1717313 (1929-06-01), D'Olier
patent: 2346885 (1944-04-01), Williams et al.
patent: 2409705 (1946-10-01), Reinhardt
patent: 2443087 (1948-06-01), Ulrich
patent: 2788901 (1957-04-01), Boeddinghaus et al.
patent: 3169111 (1965-02-01), Rose et al.
patent: 3438505 (1969-04-01), Luthi
patent: 3716144 (1973-02-01), Bartlow
patent: 3941703 (1976-03-01), Binard

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