Sieving apparatus
US4591432A · kind A · utility
Inventor
Key dates
| Filing date | Jun 11, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Jun 11, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B13/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In sieving apparatus, an undercarriage carries a belt conveyor, which has a frame that is adapted to be folded in length about a hinge. The belt conveyor carries at its discharge end a sieving machine, which is adapted to be driven and which has an adjustable inclination relative to the belt conveyor. Hydraulic cylinder-piston units are provided for adjusting the inclination of the sieve and for pivotally adjusting the pivotally movable section of the conveyor belt frame. The sieving machine is adapted to be swung against that side of the adjacent section of the conveyor belt frame which faces downwardly when the apparatus is in operating position. As a result, when the apparatus is entirely collapsed the upper section of the conveyor belt frame extends above and along the lower section of said frame and the sieving machine is disposed above the upper section of said frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.