Sealing device and sliding member

Seal for a joint or juncture – Seal between relatively movable parts – Piston ring or piston ring expander or seat therefor

Reexamination Certificate

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Details

C277S549000, C277S552000

Reexamination Certificate

active

10606766

ABSTRACT:
A sealing device comprises a sealing member brought into contact with a contact surface so as to be slidable in a predetermined sliding direction. The sealing member comprises a sliding contact portion containing a high polymer material to be brought into sliding contact with the contact surface. A plurality of recessed or protruding streaks, which are independent of one another, are provided side by side so as to constitute a column on a surface of the sliding contact portion.

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patent: 6481720 (2002-11-01), Yoshida et al.
patent: 6494462 (2002-12-01), Dietle
patent: 6592337 (2003-07-01), Yamada et al.
patent: 2003/0178781 (2003-09-01), Tejima
patent: 37 02 018 (1987-11-01), None
patent: 53-152053 (1978-05-01), None
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patent: 5-8159 (1993-02-01), None
patent: 9-210088 (1997-08-01), None
patent: 09-210088 (1997-08-01), None
patent: 2001-208210 (2001-08-01), None
patent: WO 00/65258 (2000-11-01), None

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