Excavating – Ditcher – Wheel excavator
Reexamination Certificate
2005-09-20
2005-09-20
Will, Thomas B. (Department: 3671)
Excavating
Ditcher
Wheel excavator
C037S189000, C299S085100, C299S110000, C175S355000
Reexamination Certificate
active
06944977
ABSTRACT:
Excavator drum for the production of vertical trenches, including a cylindrical shell (22) mounted so sa to rotate about its axis of revolution and a plurality of excavating tools (28, 30) mounted on the external face of the shell. The tools include a plurality of first rollers (36) equipped with cutting elements (38) mounted so as to rotate about axes, the mid-plane of the rollers substantially merging with the mid-plane (P-P′) of the shell, and the length of which is less the an the length of the shell; and a plurality of pairs of second rollers (50, 52) equipped with cutting elements, the rollers of the same pair being mounted so as to rotate about cantilever axles (54, 56) each roller having a length at least equal to the distance that separates one end a first roller from the corresponding end of the shell, the casing of the external end of the second rollers being at least in the plane containing one end (32, 34) of the shell.
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Deniau Alain
Mathieu Fabrice
Beach Thomas A
Compagnie Du Sol
Merchant & Gould P.C.
Will Thomas B.
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