Strainer screen

Details Strainer screen Strainer screen

1979-08-06

1981-04-28

Cintins, Ivars C.

Liquid purification or separation

Filter

Medium, cleaner or agitator moved by fluid

210446, B01D 3300

Patent

active

042644461

ABSTRACT:
A strainer screen and method for its production. The screen is utilized in systems for handling liquid wherein the liquids are moved through a conduit with the screen serving to collect solid material contained in the liquid to minimize passage of solid material in the conduit beyond the location of the screen. The screen consists of a surrounding frame with the periphery of the screen material attached to the frame. The screening material is confined between a pair of substantially co-extensive frame members. The screening material is welded to the frame members in a fashion such that very high operating forces can be encountered without damage to the screen. The welding operation is of a nature such that the frame members expand during the operation and then contract when cooled. This results in bowing of the screening material which provides a highly effective operating structure.

REFERENCES:
patent: 1911508 (1933-05-01), Hoff
patent: 3283911 (1966-11-01), Reise
patent: 3426910 (1969-02-01), Winzen
patent: 3966439 (1976-06-01), Vennos
patent: 3970490 (1976-07-01), Raines et al.
patent: 4169059 (1979-09-01), Storms

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