Patents by Inventor John M. Connelly, Jr.

John M. Connelly, Jr. 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).

  • Dense polytetrafluoroethylene articles
    Patent number: 5374473
    Abstract: This invention provides a densified previously expanded PTFE article having remnants of a fibril and node structure and a process for producing the article. A PTFE shape is compressed through the application of heat and pressure while the shape itself is under a vacuum, thus forming the densified ePTFE article. The densified PTFE article exhibits increased flexural strength.A diaphragm containing the densified ePTFE article as one layer is also disclosed.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: December 20, 1994
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: John B. Knox, William E. Delaney, III, John M. Connelly, Jr.
  • Pump diaphragm
    Patent number: 5349896
    Abstract: A flexible pump diaphragm for pumping fluids is described in which the diaphragm has a number of ribs or troughs located radially across its circumferential flexure portion.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: September 27, 1994
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: William E. Delaney, III, John M. Connelly, Jr., Fred C. Sicker
  • Chemically resistant diaphragm
    Patent number: 5217797
    Abstract: A composite diaphragm containing a flexible composite of a flexible polymer and an expanded polytetrafluoroethylene fabric on which is adhered to one surface a solid polytetrafluoroethylene layer. Additionally a composite diaphragm is disclosed which has a concentrically arranged ribbed elastomeric layer attached to a solid polytetrafluoroethylene layer.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: June 8, 1993
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: John B. Knox, John M. Connelly, Jr.