Patents by Inventor Pierre Attane

Pierre Attane 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-frequency acoustic rheometer and device to measure the viscosity of a fluid using this rheometer
    Patent number: 5302878
    Abstract: An acoustic rheometer working in the high frequency range comprises a torsional-mode transducer which is a crystal of the sillenites class, having a height that determines the resonance frequencies of the mode of torsion, and being provided with an electrical excitation means. Furthermore, the sensor is a rod made of an iron/nickel alloy having a very low thermoelastic coefficient. The rod is rigidly connected to the transducer. The respective diameters of the transducer and of the sensor are chosen so that the coefficient of reflection at the transducer/sensor interface is zero. The rheometer can be used in ink-based printing systems.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: April 12, 1994
    Assignee: Imaje S.A.
    Inventors: Arthur Soucemarianadin, Renaud Gaglione, Pierre Attane