US PATENT SUBCLASS 137 / 624.19
.~.~.~ Plural trips or trip actuations

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

561 R  DF  SYSTEMS {32}
624.11  DF  .~ Programmer or timer {5}
624.18  DF  .~.~ Plural, sequential, valve actuations {2}
624.19.~.~.~ Plural trips or trip actuations

DEFINITION

Classification: 137/624.19

(under subclass 624.18) Subject matter in which the valve or valves, are each biased toward one position and are latched against the bias, and a trip or trips, are controlled for releasing the latch.

(1) Note. Where a single trip is involved, the trip must be operated a plurality of times.