Patents by Inventor Lei-Lei ZHENG

Lei-Lei ZHENG 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).

  • Drive mechanism and automatic swing device including the same
    Patent number: 11505232
    Abstract: A drive mechanism which is adapted for use with a swing device includes at least one electromagnetic driving unit and a control unit. The at least one electromagnetic driving unit is adapted to be pivotally connected to a bottom of the swing device. The control unit is electrically connected to the at least one electromagnetic driving unit for controlling the at least one electromagnetic driving unit to be activated and deactivated, so as to generate an intermittent magnetic force to drive swinging movement of the swing device. The swing device including the drive mechanism is also disclosed.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: November 22, 2022
    Assignee: WONDERLAND SWITZERLAND AG
    Inventor: Lei-Lei Zheng
  • DRIVE MECHANISM AND AUTOMATIC SWING DEVICE INCLUDING THE SAME
    Publication number: 20210229730
    Abstract: A drive mechanism which is adapted for use with a swing device includes at least one electromagnetic driving unit and a control unit. The at least one electromagnetic driving unit is adapted to be pivotally connected to a bottom of the swing device. The control unit is electrically connected to the at least one electromagnetic driving unit for controlling the at least one electromagnetic driving unit to be activated and deactivated, so as to generate an intermittent magnetic force to drive swinging movement of the swing device. The swing device including the drive mechanism is also disclosed.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Applicant: Wonderland Switzerland AG
    Inventor: Lei-Lei ZHENG
  • Drive mechanism and automatic swing device including the same
    Patent number: 10988159
    Abstract: A drive mechanism which is adapted for use with a swing device includes two symmetrically-disposed electromagnetic driving units and a control unit. The electromagnetic driving units are adapted to be pivotally connected to a bottom of the swing device. The control unit is electrically connected to the electromagnetic driving units for controlling the electromagnetic driving units to be alternately activated and deactivated, so as to generate an intermittent magnetic force to drive swinging movement of the swing device. The swing device including the drive mechanism is also disclosed.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 27, 2021
    Assignee: Wonderland Switzerland AG
    Inventor: Lei-Lei Zheng
  • DRIVE MECHANISM AND AUTOMATIC SWING DEVICE INCLUDING THE SAME
    Publication number: 20180354542
    Abstract: A drive mechanism which is adapted for use with a swing device includes two symmetrically-disposed electromagnetic driving units and a control unit. The electromagnetic driving units are adapted to be pivotally connected to a bottom of the swing device. The control unit is electrically connected to the electromagnetic driving units for controlling the electromagnetic driving units to be alternately activated and deactivated, so as to generate an intermittent magnetic force to drive swinging movement of the swing device. The swing device including the drive mechanism is also disclosed.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 13, 2018
    Inventor: Lei-Lei ZHENG
  • Stroller frame assembly
    Patent number: 9701332
    Abstract: A stroller frame assembly includes: front and rear leg units; an armrest; a seat support bar disposed below and opposing the armrest; and first and second connecting bars. The first connecting bar cooperates with the armrest, the seat support bar and the front leg unit to form a first four-bar linkage mechanism. The first connecting bar cooperates with the armrest, the second connecting bar and the rear leg unit to form a second four-bar linkage mechanism.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: July 11, 2017
    Assignee: WONDERLAND NURSERYGOOD COMPANY LIMITED
    Inventor: Lei-Lei Zheng
  • STROLLER FRAME ASSEMBLY
    Publication number: 20150353115
    Abstract: A stroller frame assembly includes: front and rear leg units; an armrest; a seat support bar disposed below and opposing the armrest; and first and second connecting bars. The first connecting bar cooperates with the armrest, the seat support bar and the front leg unit to form a first four-bar linkage mechanism. The first connecting bar cooperates with the armrest, the second connecting bar and the rear leg unit to form a second four-bar linkage mechanism.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 10, 2015
    Inventor: Lei-Lei ZHENG