Patents by Inventor Andre Ponthus

Andre Ponthus 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: 4198828
    Abstract: A device for supplying coolant to a cryostat has a container containing liquified gas. An insulated first tube supplies coolant gas from the container to the cryostat. An end part of this tube is located inside the container and is bent into a U-shape so that the bend is immersed in the liquified gas, but the mouth of the tube at the free end thereof inside the container, opens above the level of the liquified gas so that the coolant gas can enter the first tube. After leaving the cryostat, the coolant is conveyed to a suction inlet of a pump which propels the coolant along a second tube which opens into the container below the liquid level. A heat exchanger to give a cooling effect is disposed adjacent this U-bend.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: April 22, 1980
    Assignee: Societe d'Etudes d'Automatisation, de Regulation et d'Appareils de Mesures S.A.
    Inventors: Jacques Mercier, Andre Ponthus
  • Patent number: 4140239
    Abstract: A re-usable experimentation crucible comprises a cylindrical side wall, a base, an opening, an internal support surface located adjacent and directed towards the opening, a removable stopper supported and centered on the support surface, and an annular groove located in the side wall between said support surface and the opening. A ring of plastic material may be inserted between the side wall and the stopper and driven by extrusion in the direction of the bottom of the crucible. This causes the ring to deform and fill the annular groove and ensure sealed closure of the crucible.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: February 20, 1979
    Assignee: Societe d'Etudes d'Automatisation de Regulation et d'Appareils des Mesures, Societe Anonyme
    Inventors: Jacques Mercier, Andre Ponthus