Patents by Inventor Qi-Chun Zhao

Qi-Chun Zhao 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).

  • Publication number: 20050150067
    Abstract: A cleaning apparatus includes an elongated housing bounding a chamber with a motor disposed therein. A drive shaft is at least partially disposed within the chamber of the housing, the drive shaft being coupled with the motor such that during selective operation of the motor the drive shaft is rotated continuously. A brush head has a plurality of bristles mounted thereon. A hub is disposed on the brush head and has an elongated channel bounded by a pair of spaced apart engagement surfaces. A spherical head is disposed within the channel so as to selectively bias against the engagement surfaces, the spherical head being eccentrically disposed on the drive shaft such that the spherical head reciprocally rotates the brush head when the drive shaft is continuously rotated.
    Type: Application
    Filed: December 15, 2004
    Publication date: July 14, 2005
    Inventors: Aaron Cobabe, David Meyers, Darrell Goff, W. Thiess, Qi-Chun Zhao
  • Publication number: 20050144744
    Abstract: A cleaning apparatus includes an elongated housing bounding a chamber with a motor disposed therein. A shaft is at least partially disposed within the chamber of the housing, the drive shaft being coupled with the motor such that during selective operation of the motor, the drive shaft is rotated continuously. A brush head is coupled with the drive shaft and has a plurality of bristles mounted thereon, the brush head has a rotational axis about which the brush head continuously or reciprocally rotates.
    Type: Application
    Filed: December 15, 2004
    Publication date: July 7, 2005
    Inventors: W. Thiess, David Meyers, Darrell Goff, Aaron Cobabe, Qi-Chun Zhao