Patents by Inventor John Randolph Fisher

John Randolph Fisher 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).

  • Protective shield for hand-held tools
    Patent number: 9221166
    Abstract: A protective device for a hand-held tool includes a protective shield having a first end and an opposing second end, a first clamp portion attached to the first end of the protective shield, and a second clamp portion removably attached to the first clamp portion. The first and second clamp portions are configured to securely fix a portion of the handle of the hand-held tool therebetween when the second clamp portion is attached to the first clamp portion.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 29, 2015
    Inventors: Ronald Jacobs, Mark Gardner, John Randolph Fisher
  • STUFFING BOX ISOLATION APPARATUS AND METHODS OF USING
    Publication number: 20150053423
    Abstract: A stuffing box isolation apparatus and method for use with a stuffing box at a wellhead. The stuffing apparatus includes an anchor component that secures the apparatus within the stuffing box, when inserted into an open bore of a stuffing box. The apparatus further includes a sealing element that is expandable to sealingly engage an inner surface of the stuffing box. The expansion of the sealing element effectively seals the open bore of the stuffing box, preventing release of wellbore fluids and/or back-flow of the produced fluids.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: John Randolph Fisher, Ronald G. Jacobs