Weighing scales – Computer – Electrical
Patent
1985-07-24
1986-09-09
Miller, Jr., George H.
Weighing scales
Computer
Electrical
177164, 364567, G01G 1922, G01G 2314
Patent
active
046103236
ABSTRACT:
The invention relates to a combination weighing system for non-uniform weight items which comprises a plurality of hoppers that selectively empty by means of gates into a chute, and then usually into a packaging machine. The system further comprises check weighers associated with each hopper and a combination selection and machine control logic which typically receives weight signals from the check weighers and sends discharge signals to predetermined gates so as to combine items in order to achieve a nominal weight between a predetermined minimum weight and maximum weight. The improvement comprises a set point determining circuit which includes logic blocks to establish a changeable set point within the range of the maximum and minimum weights. The logic blocks allow weights below a set weight and/or maintenance of an overall average weight for the output of the system. The logic blocks may also permit setting of a percentage by count, or by weight, of weighment discharges below a set weight as well as permitting the setting of intervals between weighment discharges below a set weight. Feedback of selected weights from the combination selection and machine logic may be monitored to determine maintenance of user set parameters.
REFERENCES:
patent: 4267894 (1981-05-01), Hirano et al.
patent: 4418771 (1983-12-01), Henry et al.
patent: 4508186 (1985-04-01), Sashiki et al.
patent: 4519042 (1985-05-01), Minamida et al.
patent: 4549618 (1985-10-01), Kono
patent: 4553616 (1985-11-01), Haze
Chenoweth David A.
Davis, Jr. Thornton R.
Miller Jr. George H.
The Paxall Group, Inc.
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