Filter assembly with O-ring protection
US5653871A · kind A · utility
62Cited by
15References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4015
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention includes a liquid filtering filter head configured to receive a filter cartridge closure member, where the closure member has at least one seal member. The filter head has a generally cylindrical, inverted cup-like structure defining a chamber configured to receive the closure member and two openings in fluid communication with the chamber. Furthermore, the filter head features a guide for guiding a seal member as the closure member is inserted into the chamber, so that the seal member is prevented from becoming caught in the openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.