Patents by Inventor Nelson Ezell

Nelson Ezell 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).

  • Flange-forming tool
    Patent number: 4802355
    Abstract: An apparatus and method for forming a conical flange about a circular opening in a malleable sheet material are provided. A plurality of flange-forming members are adapted to engage the circular opening in a material-opposing relationship. The members are then translated about the opening while maintaining the material-opposing relationship and varying the angular positions of the flange-forming members with respect to the material such that the conical flange is formed therein when the members are translated.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: February 7, 1989
    Inventor: Nelson Ezell