Back to results
US 2003/0079366 A1Published application
Hair dryer
OwnerChun-Chuan Changinventor
Life of this patent
Estimating the term…
Abstract
A hair dryer provides a multi-stage air current feed device to accelerate the flow velocity of the air current in the hair dryer such that the motor and the fans may generate least noise while the hair dryer is in operation. In addition to multiple stages of the air current feed device, a further added acceleration can be performed by way of applying the Bernoulli's law and the Venturi. Furthermore, a conventional hair dryer also can reduce the noise thereof without lower down the original high flow velocity and the flow rate thereof by way of applying the Bernoulli's law and the Venturi.
Claims10
A hair dryer, comprising:
- a casing with a front end a rear end;
- and
- an air current feed device, being disposed in the casing next to the rear end thereof, and further comprising
- a motor, being fixedly attached to the casing;
- a plurality of fan blade assemblies, being arranged coaxially, and being driven by the motor.
2 more elements
A hair dryer, comprising:
- a casing with a front end;
- and
- a blade wheel, being disposed in the casing;
- characterized in that a lateral side of the blade wheel provides a turbulent part fixedly attached to the casing.
1 more element
Dependencies are inferred from the claim text.