Patents by Inventor Jerry L. Nugent

Jerry L. Nugent 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).

  • Drill pipe reforming method and apparatus
    Patent number: 4253324
    Abstract: A method and apparatus is provided for reforming crushed or otherwise damaged drill pipe and the like. A plurality of expandable shoe elements are inserted into the large diameter portion of the drill pipe adjacent the crushed section. A ram or plunger is forced into and between the shoes to expand the shoes within the drill pipe for removing crushed portions thereof. More particularly, the length of travel of the plunger is coordinated to expand the shoes the proper extent to restore the drill pipe to its original configuration.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: March 3, 1981
    Inventor: Jerry L. Nugent