Patents by Inventor Micha{umlaut over (e)}l Davy

Micha{umlaut over (e)}l Davy 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).

  • Method for separating technetium from a nitric solution
    Patent number: 6179981
    Abstract: The present invention relates to a process for separating technetium from a nitric solution of technetium through cathodic electrodeposition of said technetium by electrolysis. According to the process of the invention, the nitric solution of technetium is denitrified and its pH is adjusted to a value of approximately 5.5 to 7.5 before electrolysis. Electrolysis is conducted at galvanostatic rate, and the cathode potential is approximately −1.36 V/SHE to −1.16/SHE. The ratio of the cathode surface area (S) to the volume of the technetium solution to be electrolyzed may be in the region of 0.25 to 0.50 cm−1.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: January 30, 2001
    Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres Nucleaires
    Inventors: Michel Masson, Micha{umlaut over (e)}l Lecomte, Alexandre Masslennikov, Vladimir Peretroukhine
  • Discharging by-pass for high pressure direct injection pump
    Patent number: 6170473
    Abstract: The invention concerns a relief device for a high-pressure direct-injection pump supplying petrol to an automobile vehicle engine injector manifold, the pump being supplied with fuel by a low-pressure electric fuel pump communicating with a fuel tank and the high pressure delivered being regulated by a pressure regulator, said pressure regulator taking the form of a three-way valve supplying fuel to the manifold via the fuel pump below a predetermined engine rotation speed threshold and then supplying the manifold via the top part of the injection pump when the engine speed is above the predetermined threshold.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: January 9, 2001
    Assignee: Magneti Marelli France
    Inventor: Micha{umlaut over (e)}l Pontoppidan
  • Circuit for simulating a break-over component
    Patent number: 6173242
    Abstract: The present invention relates to a circuit for simulating a break-over semiconductor component, including at least one switch simulating a switching function of the component and at least one voltage or current sensor controlling the switch, the sensor being associated with an adjustable check value corresponding to a characteristic value of the break-over component to be simulated by the circuit.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: January 9, 2001
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventor: Micha{umlaut over (e)}l Davy