Unitary filter cartridge with flow transition mouth
US8580004B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Aug 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2271/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high efficiency unitary cartridge filter for installation with a separate sealing gasket in a generally uniform circular or oblong hole of a baghouse tube sheet. The cartridge includes a plastic or metal tubular core around which is wrapped elongate pleated filter media to form a pleat pack. The pleat pack is sealed at the lower end thereof by a molded cap. A molded upper fitting includes an aerodynamically contoured transition mouth comprising compound radii of curvatures and a bore which closely corresponds to the bore of the tubular core for improved cleaning power and increased pressure during a cleaning cycle and for reduced pressure drop during normal filtering operation. The molded top may optionally incorporate and bond with a metal collar for added structural integrity and may also incorporate electrical grounding elements for grounding a metal core to the baghouse tube sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.