Air flow adjusting mechanism for hand held hot air hair dryer
US4490602A · kind A · utility
17Cited by
12References
6Claims
0Family size
Inventor
Key dates
| Filing date | Feb 18, 1983 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Feb 18, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D20/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In a hand held hot air hair dryer, wherein air is pulled in by a fan in a direction axially to the fan and then moved about the axis and through a heating mechanism to exit through a nozzle, air flow adjusting mechanism is provided to leak air flowing about the axis and thereby selectively adjusting the hot air flowing out the nozzle, without inducing any substantial changes of load to the motor driving the fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.