Liquid pump with a passive filtration system for dredging and water filtration
US10392775B2 · kind B2 · utility
1Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2017 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F5/466
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The liquid pump includes an inner and an outer tube. The inner tube can have a distal end that is positioned within an interior volume of the outer tube. A conical filter is on the distal end of the inner tube. A gas pump provides compressed air which is output through a plurality of inner tube holes on an inner surface of the inner tube on a distal portion of the inner tube and a plurality of annular space holes which are adjacent to an annular space between the inner tube and the outer tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.