Filter assembly with slip thread
US7237682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Aug 18, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4015
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter assembly comprising a housing with a threaded open end, a filter element, and a cover assembly. The filter element includes a media ring and a pair of end caps, one of which includes outwardly-projecting fingers. The cover assembly includes a cover member, and a sleeve with recesses in an outer surface. A collar member surrounds the sleeve and is freely rotationally supported by the cover member. The collar member includes i) a threaded portion on an outer surface for screwing the cover member onto the housing, and ii) recesses in an inner surface. The collar member is rotatable relative to the sleeve such that the recesses in the collar member and in the sleeve can be aligned, and the fingers can be inserted therebetween, to rotationally lock the collar member relative to the sleeve and to retain the element with the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.