Cone pump
US4019830A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Oct 6, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D3/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cone pump, fundamentally in design based on an Archimedes screw, comprising a tubular member having a helical screw mounted therein, integrally joined thereto, the flights of the screw being radially inclined to the longitudinal axis of the tube, the entire structure having a central longitudinal opening, the end discharge being characterized by a liquid seal, the structure being designed to have its lower or intake end immersed in liquid, and carrying solids such as watery sewage sludge, and, by rotation, to lift the sludge through elevations as high as 20 and 30 foot head (6 to 10 meters) through an angle of elevation of from 30.degree. to 50.degree., the preferred range being 36.degree. to 45.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.