Weighing scales – Computer – Electrical
Patent
1996-03-05
1999-04-13
Gibson, Randy W.
Weighing scales
Computer
Electrical
G01G 1300
Patent
active
058941118
ABSTRACT:
An apparatus for quantitative charging of a high accuracy and a large weighing speed are disclosed. A storage cup, which is formed by a main storage cup and four subtractive storage cups, and four additive storage cups are disposed. The storage cup stores articles having a weight which is close to a target weight. A capacity ratio between the subtractive storage cups and a capacity ratio between the additive storage cups are both set 1:2:4:8. Articles are supplied from a charging apparatus into the storage cup and the four additive storage cups. The articles within the storage cup are weighed by a load cell as a rough charging weight, and a weight difference between the rough charging weight and the target weight is calculated. A proper combination of the additive storage cups or the subtractive storage cups is selected in accordance with the weight difference, and the articles are discharged from these cups together with the articles which are stored within the main storage cup through a chute into a container or a packing machine.
REFERENCES:
patent: 4100984 (1978-07-01), Klopfenstein et al.
patent: 4494619 (1985-01-01), Matsuno
patent: 4534430 (1985-08-01), Steel
patent: 4560015 (1985-12-01), Minamida
patent: 4813503 (1989-03-01), Douglas et al.
patent: 4828054 (1989-05-01), Mosher
patent: 4874048 (1989-10-01), Kawanishi et al.
Gibson Randy W.
Yamato Scale Co. Ltd.
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