Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2011-04-05
2011-04-05
Bomar, Shane (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
Reexamination Certificate
active
07918463
ABSTRACT:
A reciprocating seal used, for example, for a shock absorber. A main seal lip has a two-step lip structure including a first lip and a second lip and a plurality of protrusions extending in the direction of the shaft are formed on a sliding contact surface of the second lip, thereby improving frictional force characteristics and, at the same time, improving sealing performance.
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Arai Hidenori
Munekata Shinobu
Takeno Kazuki
Watanabe Masaru
Yamane Ichiro
Bomar Shane
Jacobson & Holman PLLC
Lee Gilbert Y
NOK Corporation
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