Filter with filtration envelope spacing means
US4828694A · kind A · utility
49Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jan 11, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/1078
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid filter for use in a fluid system wherein fluid is forced through the filter by a suction source connected to the filter outlet is disclosed. In addition to a housing defining a volume, with an inlet and an outlet, and a filtration media envelope inside said volume, the filter further includes an envelope spacing means to support the envelope against collapse, and fluid flow spacing means between the housing and the envelope. In a preferred embodiment, the envelope spacing means comprises a grid assembly inside the envelope, connected to the housing inlet to maintain proper positioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.