Patents by Inventor Ivor Maclver

Ivor Maclver 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).

  • Modular labyrinth seal system usable with electric submersible pumps
    Patent number: 11493048
    Abstract: A labyrinth section for a submersible pump includes an outer housing having a coupling sealingly engaged at each longitudinal end of the outer housing. An inner tube is sealingly engaged at each end to one of the couplings to define a sealed annular space. A plurality of labyrinth tube sections are disposed in the annular space, each comprising labyrinth tubes engaged with end plates. A plurality of the labyrinth tube sections enable movement of fluid through the labyrinth tubes, spaces external to the labyrinth tubes and between the end plates to fill the annular space. One of the labyrinth tube sections constrains fluid to move only within the labyrinth tubes and wherein the inner tube between the end plates of the one of the labyrinth tubes comprises a fluid port into an interior of the inner tube.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: November 8, 2022
    Assignee: ZiLift Holdings, Limited
    Inventors: Ivor Maclver, Richard Greenfield
  • MODULAR LABYRINTH SEAL SYSTEM USABLE WITH ELECTRIC SUBMERSIBLE PUMPS
    Publication number: 20200072357
    Abstract: A labyrinth section for a submersible pump includes an outer housing having a coupling sealingly engaged at each longitudinal end of the outer housing. An inner tube is sealingly engaged at each end to one of the couplings to define a sealed annular space. A plurality of labyrinth tube sections are disposed in the annular space, each comprising labyrinth tubes engaged with end plates. A plurality of the labyrinth tube sections enable movement of fluid through the labyrinth tubes, spaces external to the labyrinth tubes and between the end plates to fill the annular space. One of the labyrinth tube sections constrains fluid to move only within the labyrinth tubes and wherein the inner tube between the end plates of the one of the labyrinth tubes comprises a fluid port into an interior of the inner tube.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 5, 2020
    Inventors: Ivor Maclver, Richard Greenfield