Filter hub assembly
US4287065A · kind A · utility
9Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter hub assembly has a male portion which serves as a needle accommodating unit ultrasonically welded to a female portion with a filter interpositioned therebetween. The needle accommodating unit has a sealing shoulder thereon and a lowermost rim which is inwardly beveled to contact a filter in a gentle yet secure manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.