Patents by Inventor John R. Stein

John R. Stein 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).

  • Convoluted fluid connector assembly with hardened end portion
    Patent number: 5720504
    Abstract: A fluid connector assembly having a flexible austenitic annealed stainless steel 300 series corrugated convoluted tube. At least one end of the tube has a smooth end which is free of convoluted corrugations. The corrugated portion has a hardness range of 150 to 190 points Vickers and the smooth end of the tube has a range of hardness of 275 to 380 points Vickers. A metal compression nut is used in combination with a metal compression ring in a metal fitting the smooth end to couple. The metal fitting is capable of coupling the fluid connector to another connector.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: February 24, 1998
    Assignee: Dormont Manufacturing Company
    Inventors: Thomas G. Stedman, John R. Stein, Michael A. Mantia, Sam A. Brunetto, Jr.