Excavation device

Details Excavation device Excavation device

2007-04-13

2009-06-23

Will, Thomas B (Department: 3671)

Excavating

Ditcher

Wheel excavator

C037S462000, C037S189000, C037S465000, C037S352000

Reexamination Certificate

active

07549240

ABSTRACT:
An excavation device having a pair of milling wheels with a substantially horizontal axis (X) of rotation. Each milling wheel peripherally equipped with an excavation apparatus to define an excavation front substantially parallel to the axis (X). The excavation device also has a chain-type transmission to draw in rotation, in a first operating condition, each of the milling wheels. The transmission is driven by a motor and provided, on its side which is external during use, with an excavation apparatus. The excavation device also has a thruster able to be activated to selectively move the transmission into a second operating position, widened and external with respect to the first operating condition.

REFERENCES:
patent: 3710878 (1973-01-01), Endo et al.
patent: 5111601 (1992-05-01), Casagrande
patent: 63251518 (1988-10-01), None
patent: 63312415 (1988-12-01), None
patent: 06336749 (1994-12-01), None
patent: 07305345 (1995-11-01), None
patent: 2000160592 (2000-06-01), None

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