Inspiratory muscle training device with variable loading
US6554746B1 · kind B1 · utility
29Cited by
8References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jun 11, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B23/18
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An inspiratory muscle training device comprises a chamber having an opening for the passage of air to be inhaled and exhaled, and an inlet permitting air to be inhaled to enter the chamber and to pass to the opening. A one-way exhaust valve permits exhaled air entering through the opening to escape from the chamber, and another valve is provided to resist the entry of air to be inhaled into the chamber, the latter valve serving to vary the degree of resistance in dependence upon the volume of air that has passed through the inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.