Method and apparatus for controlled removal of excess slurry fro

Details Method and apparatus for controlled removal of excess slurry fro Method and apparatus for controlled removal of excess slurry fro

1979-07-30

1981-04-28

Moore, Christopher K.

Presses

Methods

With separation from material of liquid expressed

100 54, 100110, 210356, 210406, 264344, B30B 902

Patent

active

042638437

ABSTRACT:
Method and apparatus for removing excess ceramic slurry from polyurethane foam used as a matrix for ceramic material in manufacturing filters for molten metals such as aluminum. The apparatus comprises a first chamber for retaining a body of polyurethane foam impregnated with a slurry of ceramic material; a second chamber; a slurry-permeable screen between the first and second chambers; and compression means for pressing the polyurethane foam against the screen. By evacuating the second chamber and simultaneously compressing the foam against the screen, slurry is withdrawn from the foam into the second chamber while retaining in the foam an evenly distributed residue of ceramic material.

REFERENCES:
patent: 293335 (1884-02-01), Knapp
patent: 2109559 (1938-03-01), Wickert, Jr.
patent: 2251687 (1941-08-01), Norton
patent: 3877973 (1975-04-01), Ravault
patent: 3995544 (1976-12-01), Farley
patent: 4024212 (1977-05-01), Dore et al.
patent: 4039452 (1977-08-01), Fernandez
patent: 4075303 (1978-02-01), Yarwood et al.

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