US PATENT SUBCLASS 137 / 516.11
.~.~ Single head, plural ports in parallel

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

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
511  DF  .~ Direct response valves (i.e., check valve type) {14}
516.11.~.~ Single head, plural ports in parallel {2}
516.13  DF  .~.~.~> Concentric ports
516.15  DF  .~.~.~> Annular head {1}

DEFINITION

Classification: 137/516.11

(under subclass 511) Valves wherein a single valve head controls a plurality of ports in a single seat, whereby the flow is subjected to an action of dividing and recombining by its flow through the seat member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

512.1, for plural direct response valves providing dividing and recombining a single flow line.