US PATENT SUBCLASS 4 / 303
.~.~.~ Periodic flush

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

300  DF  FLUSH CLOSET {22}
301  DF  .~ Urinals only {7}
302  DF  .~.~ Flush actuation automatically responsive to condition {3}
303.~.~.~ Periodic flush

DEFINITION

Classification: 4/303

Periodic flush:

(under subclass 302) Subject matter wherein the flushing device is actuated at recurrent intervals, e.g., as often as

a certain condition is reached.

(1) Note. The periodic flush can take place after a direct flush.

SEE OR SEARCH CLASS

137, Fluid Handling,

396+, for a self-emptying tank periodically emptied in response to filling, and subclass 624.14 for self-cycling programmed valves.