Excavator and a method for constructing an underground...

Details Excavator and a method for constructing an underground... Excavator and a method for constructing an underground...

2010-10-12

2011-12-20

Beach, Thomas (Department: 3674)

Excavating

Endless digger

C037S465000, C037S349000, C037S352000, C037S403000, C037S449000, C037S142500, C405S267000, C405S271000, C405S287000, C405S233000

Reexamination Certificate

active

08079163

ABSTRACT:
A number of front working, trench filling face-compressing, inclinedly disposed sliders are arranged alternately with cutter bits on an endless chain of a trench-forming endless chain cutter on a transporting chassis, and driven with the chain by a drive means so that backward oriented, inclined facet portions of the sliders compress a filling in the trench toward and on a front working face of the wall being formed. An elongate, filling face-compressing shield is adapted to be extended down into the trench and supported with its underground portion on the underground portion of a guide post of the cutter or on the trench bottom for forward and backward oscillation by a drive means to compress the filling face adjacent to the shield. The compacted filling is in these ways being formed by horizontal pressure.

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