Patents by Inventor Min Chan John Chow

Min Chan John Chow 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).

  • Fan incorporating non-uniform blades
    Patent number: 6719530
    Abstract: A fan (2) includes a central hub (22), and a plurality of spaced and substantially sector-shaped blades (24) radially extending from the central hub. The blades surround the central hub. Shapes of the blades are similar. Sizes of the blades are all different from one another. Spacings between any two adjacent blades are all different from one another. The blades can therefore be configured such that a natural frequency of the blades is outside a range of a working frequency of a corresponding heat dissipation assembly which is used to dissipate heat from a corresponding electronic device. Resonance of the blades can therefore be completely avoided. Noise and vibration of the blades when the fan is operated can therefore be minimized.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: April 13, 2004
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Min Chan John Chow
  • Fan incorporating non-uniform blades
    Publication number: 20030108427
    Abstract: A fan (2) includes a central hub (22), and a plurality of spaced and substantially sector-shaped blades (24) radially extending from the central hub. The blades surround the central hub. Shapes of the blades are similar. Sizes of the blades are all different from one another. Spacings between any two adjacent blades are all different from one another. The blades can therefore be configured such that a natural frequency of the blades is outside a range of a working frequency of a corresponding heat dissipation assembly which is used to dissipate heat from a corresponding electronic device. Resonance of the blades can therefore be completely avoided. Noise and vibration of the blades when the fan is operated can therefore be minimized.
    Type: Application
    Filed: April 2, 2002
    Publication date: June 12, 2003
    Inventor: Min Chan John Chow