Gravimetric blender with power hopper cover
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United States of America Patent
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Feb 12, 2019
Grant Date -
Aug 27, 2015
app pub date -
May 8, 2015
filing date -
Jun 17, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A gravimetric blender has a frame, at least one material storage hopper at the top of the frame including a hopper cover, a weigh bin located within the frame, below the hopper, for receipt of material from the hopper to be weighed and being adapted for downward discharge of the material in the bin after the material received from the hopper has been weighed, at least one load cell connecting the weigh bin to the frame for sensing the weight of contents of the weigh bin, a mixer within the frame below the hopper, for mixing material weighed in the weigh bin after that material falls downwardly from the weigh bin to the mixer, and a guide adapted for vertical movement of the hopper cover therealong between positions which the cover contacts and thereby closes the hopper and at which the cover is spaced vertically but maintained in a horizontal plane above the hopper so that the hopper is open at the top.
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