.~ Close proximity seal (e.g., contactless, fluent, etc.) {4}
410
.~.~ Magnetic
DEFINITION
Classification: 277/410
Magnetic:
(under subclass 409) Close proximity seal wherein the close proximity seal provides a polar field to act upon or cause the sealed or sealing fluid to oppose the flow of fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
501, for a dynamic, circumferential contact seal for other than a piston and a magnetic means to bias the seal.
629, for a static contact seal for other than an internal
combustion engine, or a pipe, conduit, or cable that uses magnetism.
SEE OR SEARCH CLASS
252, Compositions,
62.51+, for a composition useful for a magnetic purpose or a process for making the composition, not provided for elsewhere. 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets;
209+, for a magnet or an electromagnet, configured or arranged to perform external mechanical work but does not include the external mechanical work.
384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal;
133, for a plain bearing where the seal is a magnetic fluid barrier.
