Patents by Inventor Gary L. McDonald

Gary L. McDonald 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: 10443363
    Abstract: An apparatus and method for testing a core rock sample for reservoir souring. The apparatus includes first and second pumps, and a piston cell associated with each of the first and second pumps. Each piston cell has a first portion and a second portion divided by a movable piston such that the second portion is fluidly sealed from the first portion. Each piston cell is configured to receive fluid pumped by its respective pump into the first portion thereof. A core holder is sized to receive and maintain a core rock sample at a desired pressure and temperature. The second portions of each of the piston cells are fluidly connected to the core holder.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: October 15, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Monica A. Canalizo-Hernandez, Dennis R. Enning, Gary L. McDonald
  • Publication number: 20180119531
    Abstract: An apparatus and method for testing a core rock sample for reservoir souring. The apparatus includes first and second pumps, and a piston cell associated with each of the first and second pumps. Each piston cell has a first portion and a second portion divided by a movable piston such that the second portion is fluidly sealed from the first portion. Each piston cell is configured to receive fluid pumped by its respective pump into the first portion thereof. A core holder is sized to receive and maintain a core rock sample at a desired pressure and temperature. The second portions of each of the piston cells are fluidly connected to the core holder.
    Type: Application
    Filed: August 24, 2017
    Publication date: May 3, 2018
    Inventors: Monica A. Canalizo-Hernandez, Dennis R. Enning, Gary L. McDonald
  • Patent number: 5193684
    Abstract: A sanitary item disposal unit is formed by a disposable bag having an accordion pleated collapsible wall which unfolds in a longitudinal extending action of the bag as the sanitary item is withdrawn from a cavity, through a central aperture in a support panel, into the bag. Respective end portions of the bag support panel are pressure tape sealed for closing the bag and disposal of the sanitary item with its bag container.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: March 16, 1993
    Inventor: Gary L. McDonald