Patents by Inventor Donald William Stark

Donald William Stark 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).

  • Universal coupling and parts therefor
    Patent number: 9383049
    Abstract: A gripping device may be used to grip an inserted member. The gripping device has a body. The body defines a passage extending therethrough between opposite longitudinal ends. The body has an outer surface and an inner surface. The body includes at least three gripping elements spaced apart around the inner surface. Each of the gripping elements has a gripping surface for gripping an outer surface of the inserted member. Each of the gripping elements is movable upon application of a radial inward force to the outer surface of the body to reduce the spacing between adjacent gripping elements.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 5, 2016
    Assignee: Cambridge Brass, Inc.
    Inventors: Valer Stratulat, Donald William Stark
  • UNIVERSAL COUPLING AND PARTS THEREFORE
    Publication number: 20120280486
    Abstract: A gripping device may be used to grip an inserted member. The gripping device has a body. The body defines a passage extending therethrough between opposite longitudinal ends. The body has an outer surface and an inner surface. The body includes at least three gripping elements spaced apart around the inner surface. Each of the gripping elements has a gripping surface for gripping an outer surface of the inserted member. Each of the gripping elements is movable upon application of a radial inward force to the outer surface of the body to reduce the spacing between adjacent gripping elements.
    Type: Application
    Filed: May 2, 2011
    Publication date: November 8, 2012
    Inventors: Valer Stratulat, Donald William Stark