Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent
1982-06-01
1984-02-14
Hill, Ralph J.
Classifying, separating, and assorting solids
Stratifiers
With liquid treatment
209500, 13762414, B03B 512, B03B 524
Patent
active
044315325
ABSTRACT:
An expansible chamber is expanded to create a partial vacuum within the chamber. Following expansion, a burst of fluid pressure, attended by fluid flow and an acoustical wave, is introduced into the chamber. Simultaneously, the chamber is forcibly contracted. This transducer produces a square acoustical wave. When the transducer is incorporated into the hutch of a mining jig, it results in the pulling of agglomerations of minute particles down out of the gangue and into the hutch chamber. An annular valve member is movable axially towards and away from a valve seat. The valve member includes a concave sealing surface which mates against a convex valve seat having a smaller radius of curvature. Sealing contact is made adjacent the high pressure side of the valve. A gap is created which widens from the zone of contact towards the low pressure side of the valve. When the valve is opened a small amount, a gap is created between the sealing surface and the valve seat which narrows from the high pressure zone to the low pressure zone.
REFERENCES:
patent: 2129795 (1938-09-01), Storsand
patent: 2242020 (1941-05-01), Wood
patent: 2246084 (1941-06-01), Wood
patent: 2781129 (1957-02-01), Remer
patent: 3087619 (1963-04-01), Kraut
patent: 3703237 (1972-11-01), Cohen-Alloro et al.
patent: 3972344 (1976-08-01), Chauvigne
Barnard Delbert J.
Hill Ralph J.
Pauly Joan H.
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