Patents by Inventor Donald Ewing

Donald Ewing 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: 11168549
    Abstract: An automated sucker rod spacing device comprising a housing, a screw set within the housing and connected to a sucker rod string via a polished rod, a nut which is in threaded engagement with the screw, a means to transmit a rotation force to the nut, wherein the rotation of the nut can lower or raise the screw and thus lower or raise the sucker rod string. The device can be used to stop tagging, ensure full pump fillage, and avoid gas lock.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 9, 2021
    Assignee: TRC Services, Inc.
    Inventors: Donald Ewing, Michael Eric Johnson, Donald Mike Johnson, Joe Boyd, Danny Uselton
  • Publication number: 20200182028
    Abstract: An automated sucker rod spacing device comprising a housing, a screw set within the housing and connected to a sucker rod string via a polished rod, a nut which is in threaded engagement with the screw, a means to transmit a rotation force to the nut, wherein the rotation of the nut can lower or raise the screw and thus lower or raise the sucker rod string. The device can be used to stop tagging, ensure full pump fillage, and avoid gas lock.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 11, 2020
    Inventors: Donald Ewing, Michael Eric Johnson, Donald Mike Johnson, Joe Boyd, Danny Uselton
  • Patent number: 10508522
    Abstract: An automated sucker rod spacing device comprising a housing, a screw set within the housing and connected to a sucker rod string via a polished rod, a nut which is in threaded engagement with the screw, a means to transmit a rotation force to the nut, wherein the rotation of the nut can lower or raise the screw and thus lower or raise the sucker rod string. The device can be used to stop tagging, ensure full pump fillage, and avoid gas lock.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: December 17, 2019
    Assignee: TRC Services, Inc.
    Inventors: Michael Eric Johnson, Donald Ewing, Donald Mike Johnson, Joe Boyd, Danny Uselton
  • Publication number: 20170211365
    Abstract: An automated sucker rod spacing device comprising a housing, a screw set within the housing and connected to a sucker rod string via a polished rod, a nut which is in threaded engagement with the screw, a means to transmit a rotation force to the nut, wherein the rotation of the nut can lower or raise the screw and thus lower or raise the sucker rod string. The device can be used to stop tagging, ensure full pump fillage, and avoid gas lock.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 27, 2017
    Applicant: TRC Services, Inc.
    Inventors: Michael Eric Johnson, Donald Ewing, Donald Mike Johnson, Joe Boyd, Danny Uselton
  • Publication number: 20050181341
    Abstract: The present invention provides a self-contained electronic musculoskeletal stimulation apparatus that is a battery operated device that applies electronic stimulation to a human with a pre-programmed treatment stimulation protocol to introduce pain relieving electronic stimulation to the body for immediate, symptomatic relief of minor, chronic and acute musculoskeletal aches and pains and mild muscle tension. This invention also provides a method of using a self-contained electronic musculoskeletal stimulation apparatus whereby pain relieving electronic stimulation is applied to the body on predetermined, sequential stimulation points with electronic stimulation being activated at each consecutive stimulation point. Further, this invention provides a method of applying pain relieving electronic stimulation to a body using a self-contained reusable electronic musculoskeletal stimulation bandage with a preprogrammed treatment stimulation protocol.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 18, 2005
    Inventors: Donald Ewing, Felix Quintanar, Richard Lenser