Fluent material handling – with receiver or receiver coacting mea – Fluent charge impelled or fluid current conveyed into receiver
Patent
1986-10-31
1988-04-19
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Fluent charge impelled or fluid current conveyed into receiver
141 83, 406 3, 406 30, 414304, B65B 104
Patent
active
047382899
ABSTRACT:
An apparatus for weighing granular or pulverulent bulk goods, where the bulk good is moved by reduced pressure from a silo through at least one conveyance duct to a scale and where the flow of material is lowered by increasing the proportion of air toward the end of the conveyance procedure, is designed in such a manner as to make possible accurate and precise metering at high conveyance rates.
The invention includes a second conveyance duct not connected to the silo but leading to the scale to which the process switches over from the first conveyance duct toward the end of the weighing procedure, laminar air flow being sucked into the second conveyance duct, and a reservoir being provided which contains a slight quantity of the good to be moved and which is equipped at its lower region with a mechanical conveyor that is switched in by the scale toward the end of the conveyance procedure and that communicates with the end of the second conveyance line facing away from the scale and that furthermore uniformly supplies the good contained in the reservoir to the second conveyance duct.
REFERENCES:
patent: 4545410 (1985-10-01), Paul et al.
von Bennigsen-Mackiewicz Andreas
von Bennigsen-Mackiewicz Christoph
Bell, Jr. Houston S.
Wells Gilbert L.
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