Patents by Inventor Joseph M. Stifano

Joseph M. Stifano 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).

  • Self-threading container closure and method thereof
    Patent number: 4109820
    Abstract: A self-threading container closure for a spiral wound tube useful as a container for fluids under pressure. The closure insert includes side threads in conjunction with a spherical arch and support legs. The threads permit the insert to be screwed into the walls of the tube and allow the spiral wound media to form around the closure in a liquid and pressure tight seal. This seal is enhanced by a transfer of outward fluid pressure on the spherical arch through the support legs to the threads and container walls.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: August 29, 1978
    Assignee: International Paper Company
    Inventor: Joseph M. Stifano