Patents by Inventor Ingvar Stange

Ingvar Stange 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: 5322120
    Abstract: A device for deep well sampling when drilling for, or production of, oil and gas, includes a chamber for receiving samples and a valve for opening and closing such chamber. The device includes a hydraulic system for operating the valve. The hydraulic system, a control panel and control of the sampling device are operated by an electric system located in the panel from which signals are sent via a combined lifting and electric conducting cable.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: June 21, 1994
    Assignee: Norsk Hydro A.S.
    Inventors: Einar B e, Stig Holgersen, Hans P. Carlsen, Ingvar Stange, Carl Bastiansen
  • Patent number: 4192704
    Abstract: An expandable muff mould comprising an annular elastic metal member, which is provided with an axial slot, and a wedge means adapted to be detachably affixed in the slot, the muff mould expanding to a larger inner diameter with the wedge means inserted in slot than with the wedge means removed therefrom. The wedge means is attached to the inner side of the muff mould by a link mechanism which can be moved from a first position in which the wedge means is retracted from the slot and to a second self-blocking position in which the wedge means is locked in the slot by use of a suitable tool.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: March 11, 1980
    Inventor: Ingvar Stange