Press for the expression of liquid from liquid-containing substances
US4513659A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Jun 10, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/121
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A press for the expression of liquid from liquid-containing substances, comprising a stationary container 2 which has a filling opening 3 and an emptying opening and a rotating screw conveyor 4 made up of a screw shaft 6 with screw-vanes 5, located in the interior of the container. The screw conveyor is covered over by a flexible membrane 13 secured in pressure tight fashion to selected portion of the screw conveyor to rotate therewith. Pressure means flows in the space 15 between the conveyor screw shaft 6, the membrane 13, and the screw vanes 5 so that pressure is exerted on the liquid containing substances located in pressing space 16.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.