Package making – With means responsive to a sensed condition – Separate delivery of incomplete or defective package
Patent
1989-06-09
1990-05-29
Coan, James F.
Package making
With means responsive to a sensed condition
Separate delivery of incomplete or defective package
53502, 177 58, B65B 5702, G01G 1500
Patent
active
049284738
ABSTRACT:
A kind of automatic rotary weighing and packing machine having a plurality of weighers radially or annularly arranged on a circular rotary table for automatically effecting such processes as filling of product, weighing and judgement at respective positions around the table, which is especially suitable in the case where the product to be packed is sticky granular or powdered bulk material and the packing container is a bag or the like. This machine uses no weigh hopper or bucket in which sticky product is liable to remain to cause weight error, and the packing container is held by a holding mechanism attached to each weigher and directly filled with product, which is then weighed and sealed. A fixed amount feeding device is used for feeding product into the container and its throughput is controlled based upon the result of a subsequent weighment for keeping the weight of product packed in each container always at a predetermined value.
REFERENCES:
patent: 200342 (1878-02-01), Relph
patent: 2031708 (1936-02-01), Hannewald et al.
patent: 2158023 (1939-05-01), Smith
patent: 3498020 (1970-03-01), Eppenberger
patent: 3982376 (1976-09-01), Ikeda
patent: 4230195 (1980-10-01), Graffin
Kohashi Toru
Nagao Takeyoshi
Coan James F.
Yamato Scale Company Limited
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