US PATENT SUBCLASS 277 / 525
.~.~.~.~ Internally threaded


Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
500  DF  .~ Circumferential contact seal for other than piston {13}
510  DF  .~.~ Contained or compressed by gland member in packing box {10}
520  DF  .~.~.~ Particular gland feature {5}
525.~.~.~.~ Internally threaded


DEFINITION

Classification: 277/525

Internally threaded:

(under subclass 520) Particular gland feature wherein the gland has a radially inward facing projecting helical rib intended to fasten the component to the packing box.