Cyclically weighing bulk solid material

Details Cyclically weighing bulk solid material Cyclically weighing bulk solid material

1983-04-21

1985-11-12

Miller, Jr., George H.

Weighing scales

Processes

177 50, 177 59, 177114, 177184, G01G 1952, G01G 1316, G01G 1324, G01G 2110

Patent

active

045522359

ABSTRACT:
A method for cyclically weighing flowable bulk solid material as part of a dispensing process which includes the steps of supplying the material from a continuously operating controllable delivery feed arrangement to a weigh-pan; generating a signal indicative of the amount of material in the weigh-pan; terminating supply of the material from the feed arrangement when the signal indicates a predetermined amount of material in the weigh-pan; causing the weigh-pan, after receiving and weighing all the materials supplied by the feed arrangement up to such termination of the supply, to deliver its contents; preparing the weigh-pan for the next cycle; predetermining a rate of delivery from the weigh-pan in accordance with the requirements of the dispensing process in terms of the average amount delivered per cycle in a cycling frequency; supplying from the feed arrangement material to the weigh-pan through a valve mechanism in which the material accumulates when the weigh-pan is not receiving material from the valve mechanism; and controlling the controllable feed arrangement to supply the materials substantially at the predetermined rate. An apparatus for performing the above-noted method is also disclosed.

REFERENCES:
patent: 3254728 (1966-06-01), Aquadro et al.
patent: 3291233 (1966-12-01), Mayer
patent: 3986571 (1976-10-01), Strobel et al.
patent: 4137976 (1979-02-01), Grayson, Jr.
patent: 4211295 (1980-07-01), Gallo
patent: 4320855 (1985-04-01), Ricciardi et al.
patent: 4366872 (1983-01-01), Brunnschweiler et al.
patent: 4398612 (1983-08-01), Mikami et al.

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