Patents by Inventor Yongyong Mao

Yongyong Mao 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).

  • Lift chair and a chair base frame with a force balance mechanism for use therewith
    Patent number: 7819476
    Abstract: A support frame for use in a lift chair. In one embodiment, the support frame includes a base frame having longitudinally spaced transversely extending front and rear frame base rails; a first longitudinally extending side frame base rail connected to the front and rear frame base rails and a second longitudinally extending side frame base rail connected to the front and rear frame base rails, respectively, the first and second side frame base rails and the front and rear frame base rails being co-planar for supporting the lift chair on a surface; and a force balance member mounted to the rear frame base rail. The force balance member has a transversely extending base portion, a first arm portion extending from the base portion at a first angle ?a, and an opposite, second arm portion extending from the base portion at a second angle ?b.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 26, 2010
    Assignee: I-Trust Better Life Corp.
    Inventors: Jiaxiong Gong, Ming Yin, Xiaojun Gong, Quan Liu, Xiaoxiang Zhang, Yongyong Mao
  • Lift chair and a chair base frame with an actuator for use therewith
    Patent number: 7482544
    Abstract: An actuator usable in a support frame for use in a lift chair.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: January 27, 2009
    Assignee: I-Trust Better Life Corp.
    Inventors: Jiaxiong Gong, Ming Yin, Xiaojun Gong, Quan Liu, Xiaoxiang Zhang, Yongyong Mao
  • Lift chair and a chair base frame with an actuator for use therewith
    Publication number: 20080000761
    Abstract: An actuator usable in a support frame for use in a lift chair.
    Type: Application
    Filed: December 29, 2006
    Publication date: January 3, 2008
    Applicant: I-Trust Better Life Corp.
    Inventors: Jiaxiong Gong, Ming Yin, Xiaojun Gong, Quan Liu, Xiaoxiang Zhang, Yongyong Mao
  • Lift chair and a chair base frame with a force balance mechanism for use therewith
    Publication number: 20080001455
    Abstract: A support frame for use in a lift chair.
    Type: Application
    Filed: December 29, 2006
    Publication date: January 3, 2008
    Applicant: I-Trust Better Life Corp.
    Inventors: Jiaxiong Gong, Ming Yin, Xiaojun Gong, Quan Liu, Xiaoxiang Zhang, Yongyong Mao