Weighing scales – Weigher responsive material control – Feed
Patent
1986-01-14
1987-09-29
Miller, Jr., George H.
Weighing scales
Weigher responsive material control
Feed
177185, 177DIG6, G01G 1302, G01G 2310
Patent
active
046963561
ABSTRACT:
An automatic powder dispensing and measuring apparatus which automatically and rapidly and accurately delivers a preselected amount of powder such as gun powder to a scale. The powder dispensing apparatus is preferably in the form of screw threaded barrels rotatably driven by an electric motor which pick up powder from a chamber and dispense it from the end of the barrel to a scale. An electronic circuit controls the rotation speed of the screw threaded barrels in response to sensing means which cause no mechanical resistance to scale motion, positioned to sense the weight being measured by the scale. As the scale approaches the precise preselected amount of powder the electronic circuit responds by slowing the rotational rate of at least one of the screw threaded barrels to slow the feed rate and stop the rotation and flow of powder when the weight the scale reaches the precise preselected amount.
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patent: 2886302 (1959-05-01), Coffman, Jr. et al.
patent: 3472327 (1969-10-01), Meier
patent: 3827513 (1974-08-01), Epstein
patent: 3970159 (1976-07-01), Hahn
patent: 4074507 (1978-02-01), Ruf et al.
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Ellion Dolores D.
Ellion Max E.
Miller Jr. George H.
Mon Donald D.
O'Reilly David
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