Filter and a manufacturing method therefor

Details Filter and a manufacturing method therefor Filter and a manufacturing method therefor

1981-12-09

1984-06-26

Wyse, Thomas G.

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

2104971, 210499, B01D 2520

Patent

active

044565313

ABSTRACT:
A filter is disclosed which is capable of withstanding repeated use by cleaning. The filter is so constructed that around a frame body is wound a filter wire at a constant slit space of less than 40 with a maximum error of 50%. A method for manufacturing such a filter is also disclosed which comprises winding, on a frame body, a filter wire paired with a spacer wire for keeping the slit space of said filter wire constant in such a manner that each turn is in contact with adjacent turns; and removing the spacer wire alone by chemical or physical means while holding these wires fixed so as to obtain a filter with a smaller slit space error.

REFERENCES:
patent: 2711253 (1955-06-01), Mills
patent: 3105289 (1963-10-01), Jordin
patent: 3132099 (1964-05-01), Eilhauer
patent: 3200952 (1965-08-01), Jordin
patent: 3268999 (1966-08-01), Adler
patent: 3388448 (1968-06-01), Lovett
patent: 3747770 (1975-07-01), Zentis

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