Arrangement for conveying controlled portions of a product material to a weighing system
US7301110B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/387
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.