Patents by Inventor Ben C. Marshall

Ben C. Marshall 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).

  • Pipe fitting assembly tool
    Patent number: 4893393
    Abstract: A pipe fitting assembly tool for connecting and disconnecting pipes including a pair of clamps which are attached to separate lever clamping systems which control clamping and unclamping the pipes and which are pivotally attached to scissors structured handle bars which control the movement of the clamps to and from each other.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: January 16, 1990
    Inventor: Ben C. Marshall