US PATENT SUBCLASS 210 / 744
.~.~ Level sensing


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

600  DF  PROCESSES {14}
739  DF  .~ Including controlling process in response to a sensed condition {7}
744.~.~ Level sensing


DEFINITION

Classification: 210/744

Level sensing:

(under subclass 739) Process in which the height of a material, either absolute or relative to the height of another material is determined and used as the basis for response by the actuating means.

(1) Note. The level may be determined (by disclosure) by pressure sensing and if so claimed is classifiable in subclass 742, but if claimed in terms of height (e.g., linear measure) is classifiable here.