Patents by Inventor Jean-Pierre Pugnaire

Jean-Pierre Pugnaire 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).

  • Device and methods of measuring pressure
    Patent number: 8333568
    Abstract: Embodiments of the present invention are directed to method and devices for measuring the pressure of a pump chamber in which no internal opening or connections are needed. One embodiment of the present invention is directed to an apparatus for pumping fluid. The apparatus comprises at least one housing having a transducer surface. The transducer surface has a thickness exhibiting measurable deformation upon the chamber holding a fluid under pressure such that the transducer surface has a first position at which the chamber is at one pressure and a second position at which the chamber is at a second pressure. A strain sensor is affixed to the transducer surface producing; at least one signal upon the transducer surface assuming the first position and at least one signal upon the transducer surface assuming the second position to function as an integrated pressure transducer.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: December 18, 2012
    Assignee: Waters Technologies Corporation
    Inventors: Joseph A. Luongo, John Angelosanto, Frank Rubino, Stanley P. Pensak, Jr., David J. First, Jean-Pierre Pugnaire, Richard R. Venable
  • Device and Methods of Measuring Pressure
    Publication number: 20080260558
    Abstract: Embodiments of the present invention are directed to method and devices for measuring the pressure of a pump chamber in which no internal opening or connections are needed. One embodiment of the present invention is directed to an apparatus for pumping fluid. The apparatus comprises at least one housing having a transducer surface. The transducer surface has a thickness exhibiting measurable deformation upon the chamber holding a fluid under pressure such that the transducer surface has a first position at which the chamber is at one pressure and a second position at which the chamber is at a second pressure. A strain sensor is affixed to the transducer surface producing; at least one signal upon the transducer surface assuming the first position and at least one signal upon the transducer surface assuming the second position to function as an integrated pressure transducer.
    Type: Application
    Filed: March 4, 2005
    Publication date: October 23, 2008
    Applicant: Waters Investments Limited
    Inventors: Joseph A. Luongo, John Angelosanto, Frank Rubino, Stanley P. Pensak Jr., David J. First, Jean-Pierre Pugnaire, Richard R. Venable
  • Low pressure transducer
    Patent number: 4545255
    Abstract: A transducer is provided for measuring very low pressures, on the order of 1.5 inches of water. A fluid-tight elastomeric barrier formed with convolutions to allow relatively large linear deflections is bonded to stiff sensing element of minimum mass, the deflection of which is sensed by strain gauges mounted on a neck connecting the sensing element to the transducer housing.
    Type: Grant
    Filed: January 17, 1984
    Date of Patent: October 8, 1985
    Assignee: Environmental Control Technology, Inc.
    Inventor: Jean-Pierre A. Pugnaire