Patents Assigned to Asia World Trade Limited
  • Hair dryer attachment
    Patent number: 5161317
    Abstract: A hair dryer attachment includes a rotor impeller for converting a uniform stream of air from the hair dryer into a pulsating stream of air. A governor is provided on the rotor impeller or reduction gearing is provided between the rotor and the impeller to reduce the speed of rotation so that the pulsations are at a frequency perceptible to the user.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: November 10, 1992
    Assignee: Asia World Trade Limited
    Inventor: Gregory J. McDougall