SEAL FEATURE WHERE CHANGE IN OPERATION OR CONDITION INDUCESADDITIONAL LEAKAGE CONTROL:
(under the class definition) Sealing means including means to
prevent seepage from occurring at the joint or juncture during a change in the system or state of the seal (e.g., when relative movement between parts stops, etc.).
(1) Note. This subclass collects patents for this concept not covered by a regular subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
425+, for a dynamic, close proximity impeller (e.g., slinger, etc.) seal having a static sealing means affected by rotational movement.
433, for a dynamic contact seal where centrifugal force affects displacement, shape, or contact of seal.
558, for a dynamic, circumferentially peripheral, radially sealing, flexible projection including a fluid pressure responsive biasing feature contact for other than a piston.
914, for a seal having a backup seal in case of failure of primary seal. 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,
131, for a plain radial bearing where fluid moves the seal, subclasses 135+ for a plain radial bearing where centrifugal force moves or holds the seal in place, subclass 478 for a radial antifriction bearing where centrifugal force loads the seal or a liquid or gas forms a sealing barrier, or subclass 479 for a radial antifriction bearing where the seal establishes a pressure or pressure responsive means loads the seal,.
