Crawler moving system having variable configuration

Motor vehicles – Special driving device – Portable track

Reexamination Certificate

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Reexamination Certificate

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07654347

ABSTRACT:
Crawler moving system with variable configuration comprising a front axle (6), a rear axle (2) and at least one central axle (4) suitable for transmitting movement to the others through at least one crawler per side.Between the front axle and the central axle and between the rear axle and the central axle respective intermediate axles (3,5) are foreseen that act as a pivot about which such front and rear axles are able to rotate.

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patent: 6132287 (2000-10-01), Kuralt et al.
patent: 7316405 (2008-01-01), Kritman et al.
patent: 7475745 (2009-01-01), DeRoos
patent: 2003/0183428 (2003-10-01), Hedeen
patent: 968 705 (1958-03-01), None
patent: WO 2005/105388 (2005-11-01), None
European Search Report, Aug. 6, 2007.

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