Patents by Inventor Willson Sun

Willson Sun 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).

  • Disk brake caliper with parking brake
    Patent number: 8302741
    Abstract: A disk brake caliper with an integrated parking brake comprising a housing, a piston, an adjust screw, a ramp nut, a ramp nut return, a ramp shaft and a fix cage. The ramp nut has a body and a head at one end of the body. The fix cage is secured to the inner wall of the housing, which has a hollow structure and through which the body of the ramp nut passes. One of the fix cage and the head of the ramp nut is provided with a locking lug and the other of the fix cage and the head of the ramp nut is provided with a locking notch for mating with the locking lug to prevent the ramp nut from rotating relative to the housing.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: November 6, 2012
    Assignee: RWI Company Limited S.A.
    Inventors: Yiming Chen, Jianmin Gu, Willson Sun
  • DISK BRAKE CALIPER WITH PARKING BRAKE
    Publication number: 20100252375
    Abstract: A disk brake caliper with an integrated parking brake comprising a housing, a piston, an adjust screw, a ramp nut, ramp nut return means, a ramp shaft and a fix cage. The ramp nut has a body and a head at one end of the body. The fix cage is secured to the inner wall of the housing, which has a hollow structure and through which the body of the ramp nut passes. One of the fix cage and the head of the ramp nut is provided with a locking lug and the other of the fix cage and the head of the ramp nut is provided with a locking notch for mating with said locking lug to prevent the ramp nut from rotating relative to the housing.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 7, 2010
    Inventors: Yiming Chen, Jianmin Gu, Willson Sun