All-in-one intake valve
US6776160B2 · kind B2 · utility
17Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Sep 5, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intake valve includes a bladder having a face piece coupled to one end and an opening formed in the other end, a cover attached to the other end of the bladder and having a port coupled to an air reservoir and having a hub coupled to a container, which may be used for pumping air into the bladder when the air in the air reservoir has been consumed. The cover has a check valve for air to flow into the cover when the container is expanded, and for pumping air into the bladder when the container is squeezed. Another check valve may be used for outward flowing of excess air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.