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US 4,957,221 AGranted
Air tight storage silo
AssigneeCMI Corporation
InventorStuart W. Murray
Life of this patent
Estimating the term…
Abstract
A improved silo is provided having a pair of pivoting receiver gates overlying a pair of receiver openings and a pair of pivoting discharge gates overlying a pair of discharge openings. A deformable seal is secured to the silo between the receiver openings and the receiver gates and between the discharge openings and the discharge gates. The gates are vertically adjusted by an eccentric assembly to compress the respective deformable seal for forming an air tight barrier between the respective openings and the gate.
Claims11
A silo, comprising:
- a vertically extending vessel having a receiver opening at the upper end thereof;
- a batcher, having a hopper and a hopper discharge opening, secured to the vessel above the receiver opening, with the receiver opening and the hopper discharge opening vertically aligned;
- a gate for selectively closing the receiver opening;
- a first shaft secured to the batcher;
- at least one gate arm secured to an end of the gate and pivotally secured on the first shaft, said gate arm being positioned external to a flow path formed by said receiver opening and said hopper discharge opening;
- means for swinging the gate arm about the first shaft to move the gate alternately over and away from the receiver opening and under and away from the hopper discharge opening;
- means for lowering the first shaft and the gate when the gate is over the receiver opening;
- and
- a deformable sealing member secured to the vessel around the receiver opening in a position to be engaged by the gate when the gate is lowered to seal off the receiver opening.
6 more elements
A silo for a composition comprising:
- a vertically extending vessel having a receiver opening at the upper end thereof, said receiver opening having a vertically extending central axis;
- a gate for selectively closing the receiver opening;
- a first shaft secured to the vessel above the receiver opening;
- at least one gate arm secured to the edge of the gate and pivotally secured on the first shaft, said gate arm being positioned external to a flow of composition flowing along said axis into said receiver opening;
- means for swinging the gate arm about the first shaft to move the gate alternately over and away from the receiver opening;
- means for lowering the first shaft and the gate when the gate is over the receiver opening;
- and
- a deformable sealing member secured to the vessel around the receiver opening in a position to be engaged by the gate when the gate is lowered to seal off the receiver opening.
5 more elements
Dependencies are inferred from the claim text.