Excavating – Ditcher – Wheel excavator
Patent
1976-04-28
1977-09-20
Crowder, Clifford D.
Excavating
Ditcher
Wheel excavator
E02F 502
Patent
active
040487342
ABSTRACT:
An excavating implement adapted to be pulled behind a vehicle to form a ditch or trench. The implement includes a cutting trough for cutting through soil and a soil removing structure mounted with and extending into the cutting trough for receiving soil from the trough. The soil removing structure forms a passageway for soil to pass laterally beyond the cutting trough so that soil may be removed from the trough while the trough is cutting. A depth control structure controls the depth at which the cutting trough cuts through the soil, thereby controlling the depth of the ditch made by the apparatus.
REFERENCES:
patent: 68697 (1867-09-01), Clark
patent: 156139 (1874-10-01), Davies et al.
patent: 311668 (1885-02-01), Murray et al.
patent: 353668 (1886-12-01), Devel
patent: 721230 (1903-02-01), Pinion
patent: 811424 (1906-01-01), Mikolasek
patent: 819313 (1906-05-01), Reed et al.
patent: 1296994 (1919-03-01), Miller
patent: 3235051 (1966-02-01), Cochran
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