Weighing scales – Weigher responsive material control – Discharge valve or gate
Patent
1999-01-26
2000-09-19
Gibson, Randy W.
Weighing scales
Weigher responsive material control
Discharge valve or gate
177106, 177107, 177108, 177111, 177114, 177115, 177119, 177121, 177263, 141 83, 222 77, G01G 1318, G01G 1304, G01G 1300, B65B 326
Patent
active
061215562
ABSTRACT:
A granular material weighing system intended primarily for weighing gunpowder, but which is not limited to this application. A volumetric powder measure is used to simultaneously dispense a previously weighed batch of granular material into its final container, usually a cartridge case, while also dispensing a volumetrically measured initial batch of material onto a scale. The initial batch is close to but below the desired final weight. A dribbler is used to feed additional granular material until the scale indicates that the desired weight is reached. The powder measure may be a rotary drum or translating bar type, the scale may be a beam balance including a magnetic damping device or an electronic scale, and the dribbler may be any electronic or mechanical dribbler.
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Gibson Randy W.
Litman Richard C.
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