Soil separating systems

Details Soil separating systems Soil separating systems

2005-04-12

2010-11-30

Will, Thomas B (Department: 3671)

Unearthing plants or buried objects

Stone gathering and/or unearthing by impelling above-ground...

C171S018000, C171S111000

Reexamination Certificate

active

07841422

ABSTRACT:
A towable apparatus adapted for the separation of rock, stones, or debris from topsoil, having a stationary, non-vibrating sifting screen. A hydraulically powered conveyor belt with paddles pushes the soil across the sifting screen. The system provides features to assist prevention of machine jamming by large debris. A method of use is also disclosed.

REFERENCES:
patent: 3010523 (1961-11-01), Gifford
patent: 4221265 (1980-09-01), Pratt
patent: 4241792 (1980-12-01), Kratzer
patent: 4313502 (1982-02-01), Nelson
patent: 4482019 (1984-11-01), Murphy
patent: 4837950 (1989-06-01), Vesper
patent: 2003/0014885 (2003-01-01), Foutz et al.

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