Patents by Inventor Bernard Pierret

Bernard Pierret 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).

  • Multifunctional shutting device for lubrication filter
    Patent number: 7323103
    Abstract: A multifunctional shutting device for a lubrication filter includes a safety device with triple valve shutting. The safety device includes a first valve for closing the oil intake in the filter with a view to dismantle the filter, a second bypass valve that opens when the filter is blocked and a third valve that opens in the event of excess pressure in the hydraulic circuit. The multiple valve structure is particularly applicable to the lubrication system in an aircraft engine but can be used in other hydraulic circuits subject to similar issues.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: January 29, 2008
    Assignee: Techspace Aero S.A.
    Inventor: Bernard Pierret
  • Multifunctional shutting device for lubrication filter
    Publication number: 20060226061
    Abstract: A multifunctional shutting device for a lubrication filter includes a safety device with triple valve shutting. The safety device includes a first valve for closing the oil intake in the filter with a view to dismantle the filter, a second bypass valve that opens when the filter is blocked and a third valve that opens in the event of excess pressure in the hydraulic circuit. The multiple valve structure is particularly applicable to the lubrication system in an aircraft engine but can be used in other hydraulic circuits subject to similar issues.
    Type: Application
    Filed: December 19, 2005
    Publication date: October 12, 2006
    Applicant: TECHSPACE AERO S.A.
    Inventor: Bernard Pierret