Rock separator

Details Rock separator Rock separator

2006-06-06

2006-06-06

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Elements

C209S420000

Reexamination Certificate

active

07055698

ABSTRACT:
A rock separator for attachment to the boom arms of a tractor or skid steer having a bucket sieve and an apron. As the rock separator is pushed over the ground, the apron grid scoops soil and rock over the apron and into the bucket sieve. Openings through both the apron and the bucket sieve allow dirt and smaller soil particles to pass back onto the ground while retaining larger rocks. Wheels on the bucket sieve for engaging the ground as the rock separator is pushed along the ground allow for easy control of the depth and angle of attack of the apron into the ground.

REFERENCES:
patent: 3072257 (1963-01-01), Hockenberry
patent: 3596764 (1971-08-01), Smith
patent: 4157956 (1979-06-01), Robinson
patent: 4303507 (1981-12-01), Smith
patent: 4698150 (1987-10-01), Wigoda
patent: 5160034 (1992-11-01), Potter
patent: 5479726 (1996-01-01), Bishop
patent: 6059119 (2000-05-01), Davis
patent: 6334538 (2002-01-01), Nettles
patent: 2612966 (1988-09-01), None

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