Track drive system

Details Track drive system Track drive system

2006-03-24

2008-11-25

Nguyen, John Q. (Department: 4114)

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

C180S193000, C180S009500, C180S009540

Reexamination Certificate

active

07455141

ABSTRACT:
A track drive system comprises a chassis frame and a drive wheel rotatably coupled to the chassis frame. An upper idler is rotatably coupled to the chassis frame rearwardly of the drive wheel. A forward idler is rotatably coupled to the chassis frame below the drive wheel. A suspended frame is pivotally coupled to the chassis frame by upper and lower swing arms. A rear idler is rotatably coupled to a rear portion of the suspended frame at a location displaced generally downwardly from an attachment point of the upper swing arm by a rear idler offset distance. A lower idler is rotatably coupled to a forward portion of the suspended frame. A biasing means biases the suspended frame away from the chassis frame.

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patent: 6715575 (2004-04-01), Karpik
patent: 7040426 (2006-05-01), Berg
patent: 2005/0016784 (2005-01-01), Fecteau

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