Weighing scales – Processes
Patent
1988-05-31
1989-03-14
Miller, Jr., George H.
Weighing scales
Processes
177 50, 7386391, G01G 1952
Patent
active
048118028
ABSTRACT:
A metering operation in a capsule filling machine is controlled based on a correction signal derived from capsules just filled with material and ejected therefrom, by sampling/weighing these capsules, and by processing the weighed value to generate correction signal wherein: a first step of sampling/weighing is performed at the start-up stage of the capsule filling machine by collectively weighing a plurality of capsules sampled in bulk at once, and the second step of sampling/weighing is performed in subsequent steady operation stage by individual weighing each capsule from the bulk one by one.
An apparatus for performing the method has a sampling chute bifurcated in alternatively switchable two paths; i.e., a direct path and a controlled path, which share a common terminal i.e., a scale pan of a balance. The first step of sampling/weighing is performed in the direct path to the pan and then said second one is made through the controlled path having a gate means which permits intermittent and individual passage of capsules.
REFERENCES:
patent: 3744582 (1973-07-01), Withnell et al.
patent: 4223751 (1970-09-01), Ayers et al.
patent: 4640376 (1987-02-01), Hinzpeter
Kawaguchi Yoshihisa
Konishi Hirokazu
Ohnishi Yoshizumi
Yamamoto Taizo
Miller Jr. George H.
Nippon Elanco Kabushiki Kaisha
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