Patents by Inventor Edward J. Jachim

Edward J. Jachim 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).

  • Pressure/temperature test plug assembly
    Patent number: 4817450
    Abstract: A pressure/temperature test plug assembly is disclosed as including a cap retaining device having a chain which interconnects a closure cap for the plug with the plug body in order that the cap will not be lost when measurements are taken at the test plug. The device can be installed simultaneously with the installation of the test plug or can be retro-fit onto existing test plugs.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: April 4, 1989
    Assignee: Spedco, Inc.
    Inventor: Edward J. Jachim