Patents by Inventor Michael J. Folkrod

Michael J. Folkrod 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).

  • Anti-crush tool
    Patent number: 5195405
    Abstract: A tool useful to plumbers and other persons who work with pipe and tubing, to facilitate gripping and applying torque to a free end of a piece of pipe or tubing includes a plug portion of cylindrical shape that is driven into the free end of the pipe for the purpose of reinforcing the wall of the pipe so that it can withstand the radial forces exerted by a wrench or over-center pliers during the application of torque to the pipe. A shoulder portion limits the depth to which the plug portion can be inserted into the pipe, and a handle portion is connected to the shoulder portion for convenience in handling the tool.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: March 23, 1993
    Inventor: Michael J. Folkrod
  • Plumber's pipe tool
    Patent number: D341757
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: November 30, 1993
    Inventor: Michael J. Folkrod