US PATENT SUBCLASS 251 / 314
.~ Seat or interface seal

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

304  DF  ROTARY VALVES {5}
314.~ Seat or interface seal {1}
316  DF  .~.~> Replaceable {2}

DEFINITION

Classification: 251/314

Seat or interface seat:

(under subclass 304) Subject matter comprising a valving element which cooperates with a seat or a seal interposed between the seat and the valving element.

SEE OR SEARCH CLASS

277, Seal for a Joint or Juncture, for a generic sealing means or process,

628+, for a static contact seal for other than an internal combustion engine, or a pipe, conduit, or cable.