Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2005-06-27
2010-02-09
Patel, Vishal (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
C277S576000
Reexamination Certificate
active
07658387
ABSTRACT:
A dynamic seal is provided which is made of a processable rubber composition containing a matrix of vulcanized elastomeric material with powder filler dispersed therein. In a preferred embodiment, the elastomeric material contains a micro powder which has repeating units derived from tetrafluoroethylene. The micro powder has a median particle size of between 1 and 50 μm.
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Freudenberg-NOK General Partnership
Harness Dickey & Pierce PLC
Patel Vishal
Wangerow Ronald W.
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