Thermal exchange breathing device
US6196221A · kind A · utility
10Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A thermal exchange breathing device is provided which include a heat exchange module 14 which is mounted in a face mask (12) with an air flow passage extending from a mouthpiece (72) through a breathing vent (64) to an atmospheric vent (68) through a heat exchange medium (68) in the heat exchange module. The face mask (12) is provided with a head strap (22,94) which may include connectors (95 and 95') between the respective ends of the head strap and the sides of the face mask, said connectors including a stand-off (97) to keep the face mask snug against the user's face when the user wears a helmet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.