Granular material weighing system
OwnerBrand D. Coleinventor
Life of this patent
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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.
Claims19
A granular material weighing system comprising:
- a scale having a weighing pan, said weighing pan having a bottom, said weighing pan further having means for selectively containing or dumping a granular material;
- a volumetric measure having a hopper, an outlet, and an actuating member defining a volumetric container, said actuating member reciprocating between a first position wherein said container communicates with said hopper, and a second position wherein said container communicates with said outlet, said outlet being dimensioned and configured to discharge granular material directly into said scale's weighing pan, said actuating member being operatively connected to said weighing pan so that said operating member's first position corresponds to said weighing pan dumping the granular material, and said second position corresponding to said weighing pan containing said granular material;
- a granular material dribbler dimensioned and configured to dispense granular material into said weighing pan.
A granular material weighing system comprising:
- a scale having a weighing pan, said weighing pan having a bottom, said bottom defining a bottom hole, said weighing pan further comprising a plug, said plug being dimensioned and configured to plug said bottom hole;
- a volumetric measure having a hopper, an outlet, and an actuating member defining a volumetric container, said actuating member reciprocating between a first position wherein said container communicates with said hopper, and a second position wherein said container communicates with said outlet, said outlet being dimensioned and configured to discharge granular material directly into said scale's weighing pan, said actuating member being operatively connected to said plug so that said operating member's first position corresponds to said plug being removed from said bottom hole, and said second position corresponding to said plug fitting within said bottom hole;
- a granular material dribbler dimensioned and configured to dispense granular material into said weighing pan.
Dependencies are inferred from the claim text.