Patents by Inventor Abderrahmane Beroual

Abderrahmane Beroual 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).

  • High performance dielectric oil and the use thereof in high voltage electrical equipment
    Patent number: 7833440
    Abstract: The invention relates to a high-performance dielectric oil comprising approximately 75 to 95% by volume of a naphthenic oil and approximately 5 to 25% by volume of an ester oil, in particular a synthetic ester oil and more preferably an oil of the family of polyolesters. The high-performance dielectric oil may be used in high-voltage electrical equipment such as power, measurement, distribution or traction transformers, tap changers, bushings, distributors, oil-immersed circuit breakers, power capacitors, cables, etc.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: November 16, 2010
    Assignee: Areva T&D SA
    Inventors: Jean-Luc Bessede, Christophe Perrier, Abderrahmane Beroual
  • High Performance Dielectric Oil and the Use Thereof in High Voltage Electrical Equipment
    Publication number: 20070222546
    Abstract: The invention relates to a high-performance dielectric oil comprising approximately 75 to 95% by volume of a naphthenic oil and approximately 5 to 25% by volume of an ester oil, in particular a synthetic ester oil and more preferably an oil of the family of polyolesters. Applications: high-voltage electrical equipment, for example power, measurement, distribution or traction transformers, tap changers, bushings, distributors, oil-immersed circuit breakers, power capacitors, cables, etc.
    Type: Application
    Filed: May 24, 2005
    Publication date: September 27, 2007
    Applicant: AREVA T&D SA
    Inventors: Jean-Luc Bessede, Christophe Perrier, Abderrahmane Beroual