Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Reexamination Certificate
2006-02-28
2006-02-28
Pickard, Alison K. (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
C277S530000, C277S644000, C305S102000, C305S103000
Reexamination Certificate
active
07004474
ABSTRACT:
A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross section like alphabetical letter X, and a protrusion extending from an intersection of legs of letter X in a bushing-side direction further than a plane connecting bushing-side end portions of the legs of letter X. The protrusion has an end surface where the protrusion contacts the bushing. The seal can further include an embedding portion embedded in a space between legs of letter X, on a bushing-side of the intersection of the legs of letter X.
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Andou Noriyuki
Konno Takashi
Kurihara Akiyoshi
Muraki Hiromasa
Muramatsu Akira
Nippon Valqua Industries, Ltd.
Pickard Alison K.
Pillsbury Winthrop Shaw & Pittman LLP
Topy Kogyo Kabushiki Kaisha
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