Classifying – separating – and assorting solids – Sifting – Special applications
Patent
1991-07-10
1992-06-09
Hajec, Donald T.
Classifying, separating, and assorting solids
Sifting
Special applications
37101, 371425, 37 4, 209241, 209421, 405179, B07B 100, E02F 100
Patent
active
051204339
ABSTRACT:
An improved pipeline paddling apparatus includes a separator for separating fine material out of spoil which is piled along side an excavation, an elevator for transporting spoil to the separator, a pair of guide projections for guiding spoil into the elevator and a pair of auger type devices for directing spoil from the guiding projection both toward the elevator and in the elevating direction. A conveyor is provided to transport the separated fine portion of the spoil back into the excavation, thereby padding the pipeline. The elevator, guide and augers are pivotally adjustable as a unit with respect to a tracked vehicle, which provides maximum adjustability. In a second embodiment for use in rocky soil, the auger-type devices are eliminated and the guide projections are given a broader, concave inner guide surface.
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Hajec Donald T.
Ozzie's Pipeline Padder, Inc.
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