Arrangement for conveying controlled portions of a product...

Details Arrangement for conveying controlled portions of a product... Arrangement for conveying controlled portions of a product...

2007-11-27

2007-11-27

Gibson, Randy W (Department: 2841)

Weighing scales

Computer

Electrical

C177S119000, C222S055000, C222S077000

Reexamination Certificate

active

11369234

ABSTRACT:
An arrangement for conveying product material to a weighing system includes an infeed for product material to be weighed and at least one dosing mechanism for controlled conveyor of product material portions from the infeed to a weighing system. The dosing mechanism includes a motor-driven transport screw formed as a helically-shaped rod positioned in an open trough for conveying the product material from the infeed to the weighing system, and a control unit for controlling the motor in order to deliver a desired portion of product material to the weighing system. This arrangement provides a gentle, well-defined conveyance of product materials that are not suited for vibrational conveyance or conveyance by a screw conveyor in a tubular housing.

REFERENCES:
patent: 5143166 (1992-09-01), Hough
patent: 5340949 (1994-08-01), Fujimura et al.
patent: 5379923 (1995-01-01), Sagastegui et al.
patent: 2005/0241916 (2005-11-01), Gentili
patent: 2005/0269367 (2005-12-01), Post

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