Patents by Inventor Larry E. Bryan

Larry E. Bryan 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).

  • Method and apparatus for replacing bearings
    Patent number: 4525914
    Abstract: A method and apparatus are provided for replacing the bearing between the sampson post and the walking beam of an oil well pump. The walking beam and the pitman arms are securely fastened together to prevent relative movement therebetween. The head portion is adjustably restrained against the force of the counterweight. The walking beam is allowed to pivot on the connection between the walking beam and the pitman arms so that the walking beam moves away from the sampson post so that the bearing may be replaced.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: July 2, 1985
    Assignee: Marathon Oil Company
    Inventors: Larry E. Bryan, Richard W. Grove, William F. Primus