Breathing apparatus mouthpiece
US5368018A · kind A · utility
10Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G6/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A breathing apparatus mouthpiece which is reversibly switchable between an open circuit and a closed circuit system by rotating a special valve in the mouthpiece. The breathing apparatus mouthpiece is compact, lightweight, easy to operate and has low breathing resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.