Patents by Inventor Sam L. Gray

Sam L. Gray 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).

  • Patent number: 3958607
    Abstract: Pipe leak method and apparatus are provided in which the apparatus includes a pair of inflatable sleeves having each end of each sleeve sealed and connected by a flexible connection in spaced relationship to each other. One sleeve has a fluid connection for directing air thereinto for inflating the sleeve and a connection between the sleeves allows both sleeves to be inflated simultaneously from a remote location. A chemical line is connected through one sleeve to a space between the sleeves for directing several chemicals into the space when the sleeves are inflated in a pipe to seal a leak in the pipe between the inflated sleeves. The method has a TV camera located in a sewer line adjacent to a connection with a second sewer line so that the operator can remotely view the intersection to determine if fluids infiltrating the second line are flowing into the intersection.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: May 25, 1976
    Assignee: The Penetryn System, Inc.
    Inventor: Sam L. Gray