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US 4,712,919 AGranted
Continuous soil mixing apparatus
AssigneeBouldin & Lawson, Inc.
InventorFloyd E. Bouldin
Life of this patent
Estimating the term…
Abstract
A continuous soil mixing apparatus including a series of soil feed hoppers and a mixing chamber, all supported over an elongated, endless, single conveyor belt to carry layers of soil of different compositions from the different feed hoppers to the mixing chamber. The first soil hopper remote from the mixing chamber incorporates a soil agitator and deposits its soil directly upon the conveyor belt, while the remaining hoppers incorporate independent feed belts above the conveyor belt.
Claims14
A continuous soil mixing apparatus comprising:
- (a) an elongated, endless conveyor belt having an elongated upper run for carrying soil deposited on said upper run,
- (b) conveyor drive means for driving said conveyor belt continuously in a longitudinal direction,
- (c) an elongated first hopper having upper and bottom portions and opposite end walls, and adapted to receive a first soil of predetermined composition,
- (d) an elongated second hopper having upper and bottom portions and opposite end walls, and adapted to receive a second soil of a composition different from said first soil,
- (e) support means mounting said first and second hoppers longitudinally spaced above the upper run of said conveyor belt, said second hopper being downstream from said first hopper,
- (f) said first hopper having an open bottom spaced directly above and proximate to said upper run, so that first soil received in said first hopper gravitates directly upon said upper run below said first hopper,
- (g) agitator means in said first hopper for breaking up said first soil in said first hopper,
- (h) an elongated, endless feed belt extending the length of the bottom portion of said second hopper for supporting the second soil received in said second hopper,
- (i) feed drive means for driving said feed belt to move second soil on said feed belt toward the downstream end of said second hopper,
- (j) a discharge opening in said second hopper at the downstream end of said feed belt through which said second soil is discharged from said second hopper by said feed belt upon the upper run of said conveyor belt and upon any of said first soil carried by said upper run,
- (k) a mixing chamber above said upper run downstream from said second hopper,
- (l) a rotary mixer device in said mixing chamber, and
- (m) mixer drive means for actuating said mixer device to continuously mix said layers of said first soil and said second soil carried on said upper run of said conveyor belt into said mixing chamber.
10 more elements
Dependencies are inferred from the claim text.