Grinder accessory for pump
US11471893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2020 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2201/063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grinder accessory is useful for a pump in a wastewater application. The grinder accessory has a cutter plate and a cutting body that co-act on solids, especially fibriform solids. The cutter plate has first and second planar faces, mounted in an inlet of the pump, with a plurality of through holes and a central aperture. The cutting body is poised atop the first planar face and extends through the central aperture to rotationally couple with a drive shaft of the pump. A central hub of the cutting body has a plurality of arms that extend radially proximate to the first planar face, so that a leading edge of the arms interacts with the through holes on solids passing therethrough. A housing defines a cutting chamber around the cutter plate and the cutting body to protect them and to induce swirling action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.