Class 209/198 - Rotating

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Devices on or in which contact is effected between the material
No. of patents: 3
Last issue date: 01/17/1995

Number	Title	Issue Date
5382370	Screening system A process for continuously separating relatively coarse particles from a suspension of a mixture of particles in a liquid wherein the suspension is caused to pass through a screening medium which is rotating in its own plane so that the coarse particles a...	01/17/1995
4110206	Metal separating process and apparatus Heavy metals such as mercury, gold, platinum, rhodium, osmium, silver, lead, palladium, etc., in the free state, are separated from their ore by applying water and the ore to a plurality of two to six rotating, inclined, spiral grooved wheels driven from ...	08/29/1978
4003557	Device for the cementation of metals by liquid amalgams A cementation apparatus is provided wherein the reaction surface thereof can be increased without changing the outer dimensions. There is provided at least one inner cylinder which is freely mounted in an outer cylinder and placed one within the other. Th...	01/18/1977

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