US PATENT SUBCLASS 141 / 39
.~ Filling means controlled by gas condition in receiver

Current as of: June, 1999
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141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

37  DF  DIVERSE FLUID CONTAINING PRESSURE FILLING SYSTEMS INVOLVING RECEIVER GAS CONTENT MODIFICATION {11}
39.~ Filling means controlled by gas condition in receiver {1}
40  DF  .~.~> Control by level in filled receiver {1}

DEFINITION

Classification: 141/39

(under subclass 37) Apparatus in which the filling means for the nongaseous content material is controlled by or operates as the result of the establishment of a desired gas condition in the receiver.

(1) Note. This includes equilibrium conditions as well as those in which there is a condition responsive means controlling the operation of the filling means provided that positive flow control means is included, such as valves or servo operated discharge assistants. Flow by barometric or vacuum influences is not sufficient to cause classification in this subclass, and equilibrium conditions in which the vent is closed by float or pressure are not included.

SEE OR SEARCH THIS CLASS, SUBCLASS:

197, for automatic control of filling in gas-filled receiver systems.

SEE OR SEARCH CLASS

137, Fluid Handling,

154+, for level control to vent gases or liquids from a fluent material handling system.