Track comprised or internal and external links

Details Track comprised or internal and external links Track comprised or internal and external links

2007-09-04

2010-02-16

Stormer, Russell D (Department: 3617)

Wheel substitutes for land vehicles

Tracks or treads

With guide means for interfitting with sprocket wheel or roller

C305S187000, C305S202000

Reexamination Certificate

active

07661774

ABSTRACT:
In a track with a rotatable bushing which is brought into engagement with a sprocket of a track-type vehicle, it is intended that strength is enhanced rationally by link functionality sharing and by combination of such assigned functional tasks for achieving further improvements in rotatable bushing function. To this end, a first bolt insertion hole provided in a track shoe mount surface of an external link and a second bolt insertion hole provided in a track shoe mount surface of an internal link are arranged on the same straight line, and a straight line connecting the first bolt insertion hole and the second bolt insertion hole is situated at a position more interior than a contact plane of the external link and internal link.

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Japanese Office Action dated Dec. 9, 2008 for corresponding Japanese Application 2003-399218.
CN Office Action (6 pages) with English translation (3 pages), Issuing Date: Feb. 16, 2007.

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