Filter system for wet vacuum cleaning apparatus
US5151181A · kind A · utility
8Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Mar 28, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/58
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The liquid filter assembly including a filter housing with an inlet below a prescribed external liquid level and having a generally cylindrical filter unit inside it with reusable filter elements which effectively operate at low pressure drops and permitting bypass liquid to recirculate within the filtered section without passing through the filter element and providing a filter support frame having the filter element supported thereon to provide a changeable filter assembly unit sealingly mounted within the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.