Apparatus for the weighted dosing of granulated or pulverulent products
US4729442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1987 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Feb 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus making it possible to effect accurately in line and continuously the weight feeding of granulated or pulverulent products. It comprises two separated endless belts for extraction and dispensing. The endless belt of the dispenser is continuously weighed as a whole and the speed of the extraction apparatus is controlled to the measurement of the instantaneous load of product distributed on the dispenser belt. It comprises: PA1 a hopper (2) for storing the product to be weighed under which is arranged an endless belt 3 for extraction of which one of the two support drums (5A, 5B) is driven at a variable speed by a motor-reduction gear, PA1 a dispenser unit disposed below and in line with the endless belt 3 of the extractor, this unit being constituted of, PA1 a fixed T-shaped support frame (9) which is provided at its ends with three pillars (10A-10B-10C) supporting three strain gauge type flexion weight indicators (11A-11B-11C) which are provided with flexible suspension cables (12A-12B-12C) to which is suspended an ultralight tubular frame (13) and, PA1 an endless belt of which drums 14A-14B are supported by said frame 13, one of the drum 14A being driven at variable speed…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.