Patents by Inventor Serge Lacroix

Serge Lacroix 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).

  • Patent number: 4909153
    Abstract: The invention concerns a variable speed transportation system using passive vehicles. The passive vehicles (1) are driven at variable speed by tubes (4) rotating in bearings (13) mounted on cross-bars (14) supporting the rails (2 and 3) and by rollers rolling on the tubes (4) and orientable through an articulated parallelogram linkage (7) actuated by a lever (8) and a maneuvering sprocket wheel (9) controlled by cams situated at the edge of the track or at the rear of the preceding vehicle.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: March 20, 1990
    Assignee: Critt Productique
    Inventors: Serge Lacroix, Marc P. Treviso
  • Patent number: 4350168
    Abstract: A device for hyperthermia treatment using radio-frequency generation applied externally to the surface of a patient's body and a temperature measuring device comprising thermocouples in hypodermic needles to be inserted in the patient's body, the output of each thermocouple being passed through a low-pass or band-stop filter to a switching device for selecting a given thermocouple and comparing its output to a reference thermocouple, and the output of the switching device being passed through a low-pass filter to a recorder.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: September 21, 1982
    Assignee: Societe Anonyme de Telecommunications
    Inventors: Yves A. Chable, Serge Lacroix, Philippe M. Rault
  • Patent number: 4192730
    Abstract: A carbonaceous paste is disclosed which is used at ambient temperature without need for prior heating. The paste contains: at least 70% of calcined carbonaceous material; a low-temperature plasticizing agent such as molasses, a sugar, an alginate or a lignosulfonate; and a high-temperature plasticizing agent such as a dry pitch. The paste is used in particular for luting aluminum electrolysis cells.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: March 11, 1980
    Assignee: Societe des Electrodes et Refractaires Savoie
    Inventors: Daniel Dumas, Serge Lacroix, Jean Vallon
  • Patent number: 4160717
    Abstract: An electric contact post resistant to heating at the contact in electrochemical machining operations. The post tip, of heat-resistant alloy, slides partially in a sleeve of metallic alloy resistant to heat and corrosion, held in the corresponding post of the post guide hole made in a support of insulating material.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: July 10, 1979
    Assignee: Regie Nationale des Usines Renault
    Inventors: Gerard Navaro, Jean-Pierre Maillard, Serge Lacroix