Patents by Inventor Ming-Chuan Cheng

Ming-Chuan Cheng 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: 20030001374
    Abstract: A steering assembly for an electrical scooter has a base, a connecting tube, a front steering bar, a rear steering bar, a positioning device, a frame and a handle. The front steering bar and the rear steering bar are pivotally attached to the top of the base. The positioning device is pivotally mounted between the front steering bar and the rear steering bar to keep the front steering bar and the rear steering from pivoting relative to the base. The frame is pivotally connected to the top of the front steering and the top of the rear steering bar. A headlight is attached to the frame. The front steering bar has a length longer than that of the rear steering bar. Accordingly, the steering assembly is adjustable, and the projecting angle of the light can be controlled to a desired range.
    Type: Application
    Filed: March 19, 2002
    Publication date: January 2, 2003
    Applicant: Merits Health Products Co., Ltd.
    Inventor: Ming-Chuan Cheng
  • Patent number: 6196630
    Abstract: Horizontal swivelling angle positioning device for a chair is disclosed. The structure consists of an axle bush with a positioning ring having a plurality of positioning slots formed radially thereof being attached to a main frame of the chair. An axle is inserted in the axle bush and sustained thereon so as to integrally engage the main frame and the chair seat. A control lever is provided to interconnect two flanks formed on the axle and sandwiches a filler block therebetween. The filler block is further locked to the control lever by a set screw so that the two components are integrally combined to turn together. A spring disposed between a stationary substrate of the chair seat and a protruded tooth of the filler block. The protruded tooth is used to be inserted into one of the positioning slots and clogged thereof by the spring so as to keep the chair in a predetermined horizontal swivelling angle.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: March 6, 2001
    Assignee: Merits Health Products Co., Ltd.
    Inventor: Ming-Chuan Cheng
  • Patent number: D456745
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: May 7, 2002
    Assignee: Merits Health Products Co., Ltd.
    Inventor: Ming-Chuan Cheng
  • Patent number: D457466
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: May 21, 2002
    Assignee: Merits Health Products, Co., Ltd.
    Inventor: Ming-Chuan Cheng
  • Patent number: D379944
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: June 17, 1997
    Inventor: Ming-Chuan Cheng
  • Patent number: D381293
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: July 22, 1997
    Inventor: Ming-Chuan Cheng