SEAL INCLUDING FLUID PRESSURE DIFFERENTIAL FEATURE:
(under the class definition) Sealing means including means to create a fluid pressure greater than or less than the pressure of the sealed fluid at the joint or juncture to oppose the flow of fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304, for a process of dynamic close proximity seal (e.g., contactless, fluent, etc.) created by pressurized sealing fluid introduced to form a barrier.
431+, for a dynamic close proximity seal (e.g., contactless, fluent, etc.) created by pressurized sealing fluid introduced to form a barrier.
512+, 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 means to introduce or direct a fluid.
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.
