Frame member for pressurized screening device

Details Frame member for pressurized screening device Frame member for pressurized screening device

1987-06-11

1989-03-28

Hart, Charles

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

209319, 209403, 209405, 210453, B01D 3528, B07B 149

Patent

active

048161535

ABSTRACT:
The frame member for pressurized screening device includes an inflatable tube disposed along and outwardly of the peripheral wall of the frame. A screen is stretched over an opening in the frame and extends above the peripheral wall and the inflatable tube so that the inflatable tube can be brought into contact with the screen to impart tension to the screen. The inflatable tube is only inflatable in a direction transverse to the direction of the stretching of the screen and in such a manner as not to touch the holder member. A holder member is removably mounted on the screen attaching portion of the frame to sandwich the screen between the upper surface of the screen attaching portion and the lower surface of the holder member.

REFERENCES:
patent: 1075500 (1913-10-01), Schmits
patent: 2183991 (1939-12-01), Hasman
patent: 2213773 (1940-09-01), Symons
patent: 2753999 (1956-07-01), Miller et al.
patent: 3176843 (1965-04-01), Hoskins et al.
patent: 3341013 (1967-09-01), Moulton
patent: 3776382 (1973-12-01), Wright et al.
patent: 3888765 (1975-06-01), Bolk
patent: 4568455 (1986-02-01), Huber et al.
patent: 4582597 (1986-04-01), Huber
U.S. Patent Application Ser. No. 729,799 to Masatoshi Ando et al.

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