Patents by Inventor Ralph Bolam

Ralph Bolam 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: 5028071
    Abstract: Apparatus for connecting two tubes in a T-shape which permits the tube which is extended perpendicular from the middle of the other tube to be adjusted to a certain degree about the circumference of the other tube before the tubes are secured to one another.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: July 2, 1991
    Assignee: Mercury Tube Industries
    Inventor: Ralph Bolam