Patents by Inventor Chi-Nung Wong

Chi-Nung Wong 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: 5304885
    Abstract: An armature for a fractional horsepower motor is provided with spiders 10A having spokes 20 and arms 24. The spiders 10A fit at at least an end of laminated armature stacks around which the armature windings are wrapped. The spokes 20 are profiled to provide upstanding rounded surfaces 23 for the windings and to reduce drag. Reduction in drag and the profiled shape of the spokes 20 improves air flow through the motor and reduces the tendency of build up of carbon dust in the region of the extremities A of arm of the laminated stack as well as reduce motor noise in use.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: April 19, 1994
    Assignee: Johnson Electric S.A.
    Inventors: Chi-Nung Wong, Kam-Shing Mok