Patents by Inventor Mark Hardymon

Mark Hardymon 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).

  • Patent number: 4467865
    Abstract: A low-cost, easily operable oil well packer is disclosed comprising two, spaced, circular restrainers attached to a producing casing section and connected by a hollow, flexible, cylindrical member surrounding the production casing section. The restraining members are provided with removable valve openings which are normally sealed and adjacent thereto and spaced between the threaded ends of the production casing section and the restraining members are additional valve openings which are also normally closed so that the well packer may be actuated by means of fluid pressure introduced by means of a connection from the interior of the production casing section or by means of an exterior hose.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: August 28, 1984
    Inventor: Mark Hardymon