Filter bag seal
US5075004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter apparatus having a bag filter subassembly for collecting contaminating material. The bag filter subassembly includes a bag filter having a top end portion and an integral collar. The collar has a lower portion fixedly connected to the bag filter, and has a middle portion to be supported within a vessel, and has a top lip portion to engage a cover plate of the vessel. The collar has a pivotal web portion disposed between the middle portion and the top lip portion, and has an inner surface with a groove having sidewalls, whereby internal pressure on the sidewalls pivot the top lip portion causing a sealing ring bearing area on the cover plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.