Comminutor-pump assembly
US4720050A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1982 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Jun 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C18/0092
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A comminutor and a pump are assembled together so that they are driven by the same prime mover, such as a tractor power take-off, the pump being arranged to draw liquid, such as sewage, into a comminution chamber containing a rotating hollow cylinder which functions as a combination cutter and strainer. The solids in the sewage are comminuted until they are of a size small enough to pass through openings in the cylinder into the interior thereof from which the comminuted particles are pumped to a desired location, such as an irrigated field by the pump. The pump shaft has a drive shaft extension that extends through the center of the rotating cylinder to drive a planetary gear system arranged so that the rotating cylinder is driven at a speed much less than the pump speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.