Seal for a joint or juncture – Seal between relatively movable parts – Close proximity seal
Reexamination Certificate
2007-04-19
2010-12-28
Bomar, Shane (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Close proximity seal
C277S419000
Reexamination Certificate
active
07857321
ABSTRACT:
A bearing seal device has an air purge mechanism that includes a rotor connected to the shaft of a piece of rotating equipment and a stator connected to the housing for the rotating equipment. An air passage extends between an inlet and an outlet and is at least partially defined by circumferentially extending stator and/or rotor surfaces. Preferably, the stator incorporates an orifice, which permits the attachment of an air supply line. The air purge mechanism may include a self-compensating air supply regulator device, located adjacent a circumferential air distribution cavity and substantially adjacent to one or more atmospheric communication orifices. The bearing seal device provides sealing integrity when the shaft is both idle and operational.
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AES Engineering Ltd.
Bomar Shane
Lee Gilbert Y
Schindler Edwin D.
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