Apparatus and method of manufacturing pulmonary function filter
US6131573A · kind A · utility
21Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1997 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Mar 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pulmonary function filter is disclosed having a housing with an inlet and an outlet and a perimeter edge formed by an upper perimeter element and a lower perimeter element. The filter includes a perimeter element having a perimeter edge positioned between the upper and lower perimeter elements and wherein the filter element perimeter edge follows a path extending at least partially back on itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.