Liquid filter
US6746604B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2001 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jul 4, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/305
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid filter is described, which comprises a housing, a cover to seal said housing, a filter element arranged in said housing, and a supporting body for the filter element connected to the cover. The housing has an inflow opening for the liquid to be filtered as well as an outlet opening for the filtered liquid, and a drain opening for the liquid, which is sealed during normal operation of the filter element. For maintenance, this drain opening is opened so that all the liquid inside the housing can drain off. The drain opening is sealed by means of an element, which can be actuated by the supporting body for the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.