Patents by Inventor Lawrence L. Troxell, Jr.

Lawrence L. Troxell, Jr. 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).

  • Methods and apparatus for threading a pipe
    Patent number: 4465422
    Abstract: Methods and apparatus are provided for handling and threading tubular products, including tubing, pipe, and casing for the petroleum production industry. In one embodiment of the present invention, an improved pipe handling system is utilized to transfer segments of pipe sequentially to a press, a threading machine, and quality control stations. The pipe handling system may include a plurality of plates driven by a common motor for raising and positioning the pipe, V-rollers for supporting and pre-positioning the pipe, a powered cart for transporting the pipe to the threading machine, and a plurality of steady rest assemblies for supporting a joint of rotating pipe during the threading operation.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: August 14, 1984
    Assignee: The Pope Company, Inc.
    Inventors: Donald L. Blust, Sr., Jerome J. Pope, Lawrence L. Troxell, Jr.