Patents by Inventor James E. Lammy, Sr.

James E. Lammy, Sr. 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).

  • Method of forming a cross linked foamed polyolefin article
    Patent number: 5273702
    Abstract: A method for forming soft, resilient, smooth, energy dissipating articles from foamed partially cross-linked polyolefins wherein sheet stock is cut into a preform and the preform while at room temperature is positioned within a mold cavity formed by partible mold halves. The preforms and the cavity of the molds are so arranged and constructed that after molding there is no flashing needing trimming because the polyolefin is substantially confined within the cavity without any lateral projection into the parting surfaces of the mold.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: December 28, 1993
    Assignee: Ohio Cellular Products, Inc.
    Inventors: Donald E. Nelson, James E. Lammy, Sr.
  • Method of forming a cross linked foamed polyolefin composite article
    Patent number: 4980110
    Abstract: A method for forming soft, resilient, smooth, energy dissipating articles from foamed partially cross-linked polyolefins wherein sheet stock is cut into a preform and the preform while at room temperature is positioned within a mold cavity formed by partible mold halves. The preforms and the cavity of the molds are so arranged and constructed that after molding there is no flashing needing trimming because the polyolefin is substantially confined within the cavity without any lateral projection into the parting surfaces of the mold.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: December 25, 1990
    Assignee: Ohio Cellular Products, Inc.
    Inventors: Donald E. Nelson, James E. Lammy, Sr.