US PATENT SUBCLASS 222 / 450
.~.~ For both inlet and outlet

Current as of: June, 1999
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222 /   HD   DISPENSING

424.5  DF  SUPPLY CONTAINERS WITH TRAPS {3}
425  DF  .~ With trap chamber cutoffs {11}
450.~.~ For both inlet and outlet {1}
451  DF  .~.~.~> Rigidly interconnected or unitary cutoffs {2}

DEFINITION

Classification: 222/450

(under subclass 425) Dispensers having valves or other cutoffs for both inlet and outlet passages of the trap.

(1) Note. A single valve which closes the two passages alternately is here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

445+, for nonrigidly interconnected inlet and outlet cutoffs.

476, for two valves which alternately close the same outlet, without structure defining a trap chamber.