US PATENT SUBCLASS 137 / 244
.~.~.~ Cleaning member reciprocates in passage

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

237  DF  WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE {2}
238  DF  .~ Cleaning or steam sterilizing {4}
242  DF  .~.~ Mechanical cleaning {2}
244.~.~.~ Cleaning member reciprocates in passage {2}
245  DF  .~.~.~.~> By-pass cleaning
245.5  DF  .~.~.~.~> Independent actuation

DEFINITION

Classification: 137/244

(under subclass 242) Systems in which the fluent material system has a member which has a reciprocating movement to enter a restricted passage of the system to clean either or both parts, either the member, the passage or the movement being nonworking characteristics of the system; i.e., not contributing to the fluid flow causing or controlling function of the system, though the member or passage may be carried by a working part of the system.

SEE OR SEARCH CLASS

22, Dispensing,

149+, for dispensers in which a cleaning element enters the container outlet.