Patents by Inventor Jack L. Sappington

Jack L. Sappington 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).

  • Apparatus and method for dispensing and retrieving flexible pipe
    Patent number: 4148445
    Abstract: Flexible pipe used to supply water to remotely located drilling rigs, typically made from a suitable synthetic resin such as polyethylene, is laid and retrieved from spools or reels mounted with a vehicle as the vehicle is moving. The vehicle may be a truck or a trailer drawn by a truck or tractor. Guiding structure is provided on the vehicle to facilitate loading and unloading of the pipe from the reels.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: April 10, 1979
    Assignee: Midland Tank Rental Company
    Inventors: John L. Reynolds, Jack L. Sappington, Lawrence J. Sullivan