Patents by Inventor John Lloyd Busby

John Lloyd Busby 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: 11091974
    Abstract: The present disclosure provides adjustable mandrel hanger assemblies and methods of their use. The adjustable mandrel hanger assembly includes an upper wellhead component, a lower wellhead component comprising a load shoulder, a mandrel hanger with a protrusion disposed on an exterior of the mandrel hanger, a seal assembly, and a height adjustment ring, wherein the height adjustment ring fits securely around a protrusion of the mandrel hanger and wherein a largest exterior diameter of the height adjustment ring is greater than an interior diameter of the load shoulder.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: August 17, 2021
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Vicki Deck Corso, John Lloyd Busby
  • Publication number: 20210148182
    Abstract: The present disclosure provides adjustable mandrel hanger assemblies and methods of their use. The adjustable mandrel hanger assembly includes an upper wellhead component, a lower wellhead component comprising a load shoulder, a mandrel hanger with a protrusion disposed on an exterior of the mandrel hanger, a seal assembly, and a height adjustment ring, wherein the height adjustment ring fits securely around a protrusion of the mandrel hanger and wherein a largest exterior diameter of the height adjustment ring is greater than an interior diameter of the load shoulder.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Inventors: Vicki Deck Corso, John Lloyd Busby
  • Publication number: 20150136406
    Abstract: A plug pulling device includes an elongated housing comprising a production tree connection interface, a shifting tool disposed within and along a substantial length the housing and comprising a distal end configured to couple to a tubing plug, and a seal disposed within the housing and formed around a portion of the shifting tool. The seal isolates a first portion of the housing from a second portion of the housing. The second portion of the housing is adjacent to the production tree connection interface. The shifting tool is configured to move partially in and out of the first portion of the housing when there is a pressure differential between the first portion of the housing and an environment external to the first portion of the housing.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Mauricio Baez, Raymond A. Stawaisz, John Lloyd Busby, Brian Saucier, Stephen Gregory Pierce, Walter Warren Weaver