Patents by Inventor Norval Roland Dove

Norval Roland Dove 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: 8297365
    Abstract: A back-off sub apparatus is disclosed. The apparatus includes a connection connecting a rotational section and a non-rotational section. The rotational section is designed to be rotated via a ball dropped into the well under sufficient pressure to cause the rotational section to rotate relative to the non-rotational section supplying a controlled and sufficient torque to the connection to break the connection. The connection then is unthreaded by normal surface action. The disconnected or upper section of the apparatus and the drill string section associated with it can be withdrawn from the well leaving the lower portion and the drill string section associated with it in the well.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 30, 2012
    Assignee: Vortexx Research, Ltd
    Inventor: Norval Roland Dove
  • Publication number: 20100288562
    Abstract: Novel nozzles are disclosed that include flutes and/or baffles having cross-sections that undergo a rotation from a nozzle inlet to a nozzle outlet to produce fluid flows having a velocity profile including both linear and angular velocity components.
    Type: Application
    Filed: February 28, 2007
    Publication date: November 18, 2010
    Applicant: VORTEXX GROUP, INC.
    Inventors: Norval Roland Dove, John E. Akin
  • Patent number: 5653298
    Abstract: A method and abstract of removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure, which comprises jetting fluid through a nozzle facing and located a predetermined distance from said surface, said nozzle being shaped to eject the fluid in a steam having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure, said distance being predetermined to expose said surface to said zone of negative pressure, whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: August 5, 1997
    Assignee: Vortexx Group, Inc.
    Inventors: Norval Roland Dove, Stephen Kelly Smith, W. Gerald Lott