US PATENT SUBCLASS 137 / 879
.~.~.~.~ For valve having a ball head

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

561 R  DF  SYSTEMS {32}
861  DF  .~ With flow control means for branched passages {8}
877  DF  .~.~ Biased valved {1}
878  DF  .~.~.~ Spring bias {3}
879.~.~.~.~ For valve having a ball head

DEFINITION

Classification: 137/879

For valve having a ball head:

(under subclass 878) System wherein fluent material flow control means employs a substantially spherical member to regulate flow.