Sludge processing system
US4387633A · kind A · utility
17Cited by
18References
15Claims
0Family size
Inventor
Key dates
| Filing date | Feb 6, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Feb 6, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/205
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sludge processing system includes a cylindrical chamber with a piston slidably mounted therein. The chamber includes an inlet valve and an output port. Sludge contained within the chamber is compacted by the piston as expressing liquid exits from the chamber via the outlet port. The inlet port admits the sludge upon a withdrawal of the piston. Sieves on opposite ends of the chamber contain the particulate matter in the sludge as the liquid exits therefrom. A cake of solid sludge matter builds up upon successive strokes of the piston, and is then expelled by a final stroke of the piston via a door in an end of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.