(under the class definition) Sealing means including means for releasing or relieving fluid pressure at the joint or juncture.
(1) Note. For this subclass a valve for a passageway must claim or disclose a venting function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
408, for a relatively rotatable, radially extending, sealing face member (e.g., face, mechanical, etc.) including means to introduce, circulate, or remove fluid.
457, for a piston groove having a passageway for fluid return, pressure relief, or venting.
514, for a dynamic, circumferential contact seal for other than a piston intended to be contained or compressed by a gland member in a packing box having fluid draining, venting or pressure relief means.
552, for a dynamic, circumferential contacting, peripheral, radially sealing, flexible projection (e.g., lip seal, etc.) including a pressure relief or venting means for other than a piston.
SEE OR SEARCH CLASS 384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal,
479, for a radial antifriction bearing where the seal establishes a pressure or pressure responsive means loads the seal.
