Patents by Inventor Jerry D. Laging

Jerry D. Laging 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).

  • Apparatus for pressure testing pipe
    Patent number: 4194389
    Abstract: External pipe testing apparatus is disclosed as comprising semi-cylindrical housing sections hingedly connected for swinging between an open position to permit the housing to be moved into and out of a position about a section of the pipe to be tested. When the pipe sections are locked to one another, seal strips mounted on the inside of each housing section are caused to sealably engage with one another and the ends of the pipe section to form an annular test chamber about the pipe section.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: March 25, 1980
    Inventor: Jerry D. Laging