Motor vehicles – Special driving device – Portable track
Reexamination Certificate
2008-04-24
2011-10-11
Dickson, Paul N (Department: 3611)
Motor vehicles
Special driving device
Portable track
C305S060000, C029S428000
Reexamination Certificate
active
08033347
ABSTRACT:
A final drive unit includes a sprocket, a hub unit and a holding portion. The hub unit is arranged inside the sprocket and includes a hub portion and a cover member mounted to the hub portion. At least the hub portion is configured and arranged to rotate about a rotational axis together with the sprocket. The holding portion is arranged on one of the hub portion and the cover member of the hub unit in proximity to an outer end of the one of the hub portion and the cover member with respect to an axial direction of the rotational axis. The holding portion is configured and arranged to hold an end of a wire-shaped member that pulls a crawler belt when the crawler belt is wound around the sprocket.
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patent: 3641662 (1972-02-01), Garman et al.
patent: 3722330 (1973-03-01), Smekens
patent: 4258463 (1981-03-01), Lindquist
patent: 2008/0185911 (2008-08-01), Rutz et al.
patent: 48-40213 (1973-11-01), None
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patent: 04-328079 (1992-11-01), None
patent: 2003-112672 (2003-04-01), None
Araki Atsumi
Kometani Yukio
Matsui Jun-ichi
Adams Tashiana
Dickson Paul N
Global IP Counselors
Komatsu Ltd.
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