Appliance for the removal of rakings and/or screenings out of liquid flowing in a launder
US5078865A · kind A · utility
Inventor
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/828
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a device for the removal of particles and/or screenings from a liquid running in a laundry. A screen with openings in the shape of a cylinder jacket reaches into the laundry and is tilted upwards. The screen is partly immersed in the liquid, and parallel haulage track for the material is provided. The track is located spaced from the screen, and has the form of a screw conveyor with a housing, a shaft and a conveyor helix. The conveyor helix moves alongside the screen and picks up the material and transports it upwards. The openings with their lengthwise direction are inclined relative to the axis of the cylindrical jacket-shaped screen so that they are situated approximately parallel to the effective direction of the total force exerted on the material by the conveyor helix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.