Patents by Inventor Edgar Alfredo Campo

Edgar Alfredo Campo 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).

  • Winding device and chuck therefor
    Patent number: 4095754
    Abstract: A slit web rewinding assembly is disclosed, including a winding device with a pivotal arm, a chuck, and a pressure-regulated fluid cylinder. The chuck includes at least one core retaining spring of special design and the fluid cylinder is universally connected to the arm by a ball and socket.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: June 20, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edgar Alfredo Campo