Patents by Inventor Tung-hoi Ng

Tung-hoi Ng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5727331
    Abstract: A hair dryer including more than one switch to control air flow rate and/or temperature. The switches are located on different portions of the hair dryer, allowing the user to select air flow rate and/or temperature when gripping the dryer in different ways. In one aspect, a switch is mounted like a trigger on a pistol-shaped hair dryer. A collar located entirely around the hair dryer's barrel mechanically links this trigger switch to a lever positioned on the barrel. When the lever on the barrel is squeezed or pulled, the collar rotates around a pivot to activate the trigger. This collar arrangement thus provides a second switch to control the air flow rate and/or temperature of the dryer.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: March 17, 1998
    Assignee: Windmere Corporation
    Inventors: Arnold Thaler, Tung-hoi Ng