Radially sealed air filters
US5487767A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1995 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jan 30, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2271/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improvement in filter construction, wherein the filter has a metal end cap affixed over the front end of corrugated filtering material within the filter, the metal end cap having a radially extending portion and inner and outer axially extending portions with one of the axially extending portions being longer than the other. Plastisol is used to bond the metal end cap to the end face of the corrugated filtering material and a seal of vulcanized rubber having a hardness of 35 to 40 durometer is bonded to the outside surface of the end cap. The opposite end of the filter is closed with a circular metal pan bonded thereto with plastisol. A loop is pivoted on the circular metal pan to facilitate withdrawing the filter from a filter housing after the filter has been used for a prescribed period of time or has become clogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.