US PATENT SUBCLASS 210 / 131
.~.~ By movement of separation medium


Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

97  DF  FLOW, FLUID PRESSURE OR MATERIAL LEVEL, RESPONSIVE {14}
130  DF  .~ Fluid pressure responsive by-pass {3}
131.~.~ By movement of separation medium


DEFINITION

Classification: 210/131

(under subclass 130) Apparatus in which the responsive means is a separating element or filter medium which provides a bypass by flexing or compression thereof or by movement in its entirety.

SEE OR SEARCH THIS CLASS, SUBCLASS:

356, for fluid operated means to flex a filter means during operation.

398+, for movable elements within a casing, the movement of which may open a bypass.

738, and 748, for processes including pulsation or oscillation essential to the separation or purification.