Composite screen

Details Composite screen Composite screen

1998-11-09

2000-08-22

Popovics, Robert J.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21049701, 162368, 162372, 428116, 428593, 2989662, 492 32, B01D 2962

Patent

active

061057886

ABSTRACT:
A papermakers' screen basket for pressure screening of papermaking stock or for pressure filtering is formed with a support core formed with honeycomb like cells that extend radially in the direction of flow through the screen basket, and a thin covering having screening openings therethrough is supported on the inlet surface of the honeycomb cell core. The core is formed by rolling a flat section of core into the shape of a cylinder and welding the abutting ends to form a complete cylinder and then attaching a perforated or a mesh sheet-like metal covering against the core inlet surface, in which the thin sheet metal covering defines small openings, such as slots or apertures, leading into the honeycomb core, and is welded in place.

REFERENCES:
patent: 690030 (1901-12-01), Parker
patent: 1949998 (1934-03-01), French
patent: 3579422 (1971-05-01), Minick et al.
patent: 3747770 (1973-07-01), Zentis
patent: 3773614 (1973-11-01), Pennington
patent: 3829360 (1974-08-01), Holz
patent: 3984044 (1976-10-01), Breton et al.
patent: 4619737 (1986-10-01), Holz
patent: 4814081 (1989-03-01), Malinowski

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