Patents by Inventor Jian Wen Zhang

Jian Wen Zhang 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).

  • BRUSH ROLL OF A VACUUM CLEANER
    Publication number: 20110203073
    Abstract: A vacuum cleaner has a brush roll which has a housing. A motor is disposed within the housing and has a pulley mounted on a shaft of the motor. A roller is disposed within the housing and has a drive wheel. A belt couples the pulley to the drive wheel, so that the motor can drive the roller. The roller has bristles for sweeping a surface to be cleaned.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Applicant: JOHNSON ELECTRIC S.A.
    Inventors: Ching Hang LEUNG, Jian Wen ZHANG, Jian Jun LIU, Xiao Ping LV
  • Electric motor
    Patent number: 7834491
    Abstract: A small size permanent magnet direct current motor has a housing accommodating a permanent magnet stator and a wound rotor. The rotor has a rotor core with a diameter of 23 mm±3 mm and 12 poles and a cylindrical commutator. The motor has an output power of more than 25 watts.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 16, 2010
    Assignee: Johnson Electric S.A.
    Inventors: Wen Jun Huan, Jian Wen Zhang, Wai Shing Ip
  • ELECTRIC MOTOR
    Publication number: 20090091211
    Abstract: A small size permanent magnet direct current motor has a housing accommodating a permanent magnet stator and a wound rotor. The rotor has a rotor core with a diameter of 23 mm±3 mm and 12 poles and a cylindrical commutator. The motor has an output power of more than 25 watts.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 9, 2009
    Inventors: Wen Jun HUAN, Jian Wen Zhang, Wai Shing Ip
  • Electric motor
    Patent number: D601958
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: October 13, 2009
    Assignee: Johnson Electric S.A.
    Inventors: Wen Jun Huan, Jian Wen Zhang, Wai Shing Ip