Patents by Inventor Jeffery Wilbert Dufrene

Jeffery Wilbert Dufrene 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: 10161238
    Abstract: A submersible pumping system that is operable under hydrostatic pressure. The system suitably comprises a prime mover submersible within a first fluid; a pump means submersible within the first fluid and sealably coupled to the prime mover; and a fluid source in fluid communication with the prime mover, the fluid source providing a second fluid effective to act on the prime mover to power the pump means; wherein the second fluid is discharged in the first fluid after acting on the prime mover; and wherein the second fluid has a chemical composition substantially similar to the first fluid.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 25, 2018
    Assignee: Wright's Well Control Services, LLC
    Inventors: David C. Wright, Jeffery Wilbert Dufrene
  • Publication number: 20160369610
    Abstract: The present application is directed to a submersible pumping system operable under hydrostatic pressure. The system suitably comprises a prime mover submersible within a first fluid; a pump means submersible within the first fluid and sealably coupled to the prime mover; and a fluid source in fluid communication with the prime mover, the fluid source providing a second fluid effective to act on the prime mover to power the pump means; wherein the second fluid is discharged in the first fluid after acting on the prime mover; and wherein the second fluid has a chemical composition substantially similar to the first fluid.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Applicant: Wright's Well Control Services, LLC
    Inventors: David C. Wright, Jeffery Wilbert Dufrene
  • Patent number: 9435185
    Abstract: The present application is directed to a submersible pumping system operable under hydrostatic pressure. The system suitably comprises a prime mover submersible within a first fluid; a pump means submersible within the first fluid and sealably coupled to the prime mover; and a fluid source in fluid communication with the prime mover, the fluid source providing a second fluid effective to act on the prime mover to power the pump means; wherein the second fluid is discharged in the first fluid after acting on the prime mover; and wherein the second fluid has a chemical composition substantially similar to the first fluid.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: September 6, 2016
    Assignee: Wright's Well Control Services, LLC
    Inventors: David C. Wright, Jeffery Wilbert Dufrene
  • Patent number: 8413725
    Abstract: The present application is directed to a subsea separator. The subsea separator suitably comprises (a) a housing having an inlet for receiving a fluid mixture, a non-gaseous fluid outlet located along the housing at a point lower than the inlet, and a gas outlet located along the housing at a point higher than the inlet; (b) a deflector means located within the housing for acting on fluid entering the housing; and (c) a sealing means in communication with the gas outlet for preventing non-gaseous fluid from exiting the housing through the gas outlet, the sealing means being operationally configured to open and seal the gas outlet based on the volume of non-gaseous fluid within the separator; wherein the separator is operationally configured to operate under a differential pressure including a greater external hydrostatic pressure than internal pressure and vice versa.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: April 9, 2013
    Inventors: David C Wright, Jeffery Wilbert Dufrene
  • Publication number: 20110155384
    Abstract: The present application is directed to a subsea separator. The subsea separator suitably comprises (a) a housing having an inlet for receiving a fluid mixture, a non-gaseous fluid outlet located along the housing at a point lower than the inlet, and a gas outlet located along the housing at a point higher than the inlet; (b) a deflector means located within the housing for acting on fluid entering the housing; and (c) a sealing means in communication with the gas outlet for preventing non-gaseous fluid from exiting the housing through the gas outlet, the sealing means being operationally configured to open and seal the gas outlet based on the volume of non-gaseous fluid within the separator; wherein the separator is operationally configured to operate under a differential pressure including a greater external hydrostatic pressure than internal pressure and vice versa.
    Type: Application
    Filed: December 24, 2010
    Publication date: June 30, 2011
    Inventors: David C. Wright, Jeffery Wilbert Dufrene
  • Publication number: 20110158824
    Abstract: The present application is directed to a submersible pumping system operable under hydrostatic pressure. The system suitably comprises a prime mover submersible within a first fluid; a pump means submersible within the first fluid and sealably coupled to the prime mover; and a fluid source in fluid communication with the prime mover, the fluid source providing a second fluid effective to act on the prime mover to power the pump means; wherein the second fluid is discharged in the first fluid after acting on the prime mover; and wherein the second fluid has a chemical composition substantially similar to the first fluid.
    Type: Application
    Filed: December 24, 2010
    Publication date: June 30, 2011
    Inventors: DAVID C. WRIGHT, JEFFERY WILBERT DUFRENE