Patents by Inventor Elizabeth Claire Vinson

Elizabeth Claire Vinson 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).

  • Cargo dolly with synchronous steering and accessible surface castors and method of manufacture
    Patent number: 11117605
    Abstract: A transportation dolly can have a frame, two axles pivotally coupled with the frame, each axle having two distal ends and a wheel assembly coupled at each distal end and a synchronous steering system. The synchronous steering system can include an intermediate link pivotally coupled with the frame, the intermediate link having a two distal ends, and a first push-pull rod coupling one of the two axles with the intermediate link, and a second push-pull rod coupling the other of the two axles with the intermediate link. The first push-pull rod is coupled to one distal end of the intermediate link and the second push-pull rod is coupled to the opposing distal end of the intermediate link. The first push-pull rod, the second push-pull rod, and the intermediate link provide counter phase synchronous pivoting of the two axles relative to the transportation dolly.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 14, 2021
    Assignee: Par-Kan Company, LLC
    Inventors: Brent Eckerley, George Donald Thomas Shoebridge, Elizabeth Claire Vinson
  • CARGO DOLLY WITH SYNCHRONOUS STEERING AND ACCESSIBLE SURFACE CASTORS AND METHOD OF MANUFACTURE
    Publication number: 20200101994
    Abstract: A transportation dolly can have a frame, two axles pivotally coupled with the frame, each axle having two distal ends and a wheel assembly coupled at each distal end and a synchronous steering system. The synchronous steering system can include an intermediate link pivotally coupled with the frame, the intermediate link having a two distal ends, and a first push-pull rod coupling one of the two axles with the intermediate link, and a second push-pull rod coupling the other of the two axles with the intermediate link. The first push-pull rod is coupled to one distal end of the intermediate link and the second push-pull rod is coupled to the opposing distal end of the intermediate link. The first push-pull rod, the second push-pull rod, and the intermediate link provide counter phase synchronous pivoting of the two axles relative to the transportation dolly.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 2, 2020
    Applicant: Par-Kan Company, LLC
    Inventors: Brent Eckerley, George Donald Thomas Shoebridge, Elizabeth Claire Vinson