US PATENT SUBCLASS 222 / 64
.~ Material level control


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



222 /   HD   DISPENSING

52  DF  AUTOMATIC CONTROL {10}
64.~ Material level control {3}
65  DF  .~.~> Full and/or empty interlock
66  DF  .~.~> Empty container cutoff
67  DF  .~.~> Float-operated flow controllers {2}


DEFINITION

Classification: 222/64

(under subclass 52) Dispensers having means responsive to the level of material to cause operation of some device. The material may be in a supply container, trap, passage, overflow receptacle, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21, for selectively preset level responsive mechanism for determining a single trapped volume.

56, for control by level in a dispensing-receiver.

62, for float controlled pressure liquids.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses for water closets with liquid level controls. 137, Fluid Handling,

386+, for liquid levels responsive or maintaining systems.

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

192+, for automatic control of flow cut-off or diversion.

184, Lubrication,

103.1+, for constant level lubricators.

221, Article Dispensing, appropriate subclasses for article dispensing devices not otherwise provided for including empty supply source responsive means, such devices being classified in

17+, and/or 108+ of that class (221).

414, Material or Article Handling,

295, and 296 for a static receptacle and means for charging or discharging the receptacle and wherein either the position

of the charging means (subclass 295), or the drive of a charging conveyor (subclass 296), is responsive to the level of material in the receptacle.

431, Combustion, 64, for a fuel burner having means maintaining a constant fuel level in a combustion zone.