Patents by Inventor Frederic Grein

Frederic Grein 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 axial alignment of an assembly for implanting a parietal probe in a reducing-smelting furnace, and associated implanting assembly
    Patent number: 4817293
    Abstract: This method for axially aligning an assembly for implanting a parietal probe through an orifice provided in the wall of a reducing-smelting furnace is applicable to an assembly comprising a tightness device equipped with a sealing off member and a tightness member, a chassis fixed to the furnace and supporting the tightness device and a frame equipped with a probe-holding carriage. The assembly further comprises means for adjusting the position of the frame and means for temporarily fixing coaxially to the tightness device first a telescope directed towards the orifice in order to align the axis of the tightness device with the axis of said orifice, and then a light beam source directed onto a target carried by the carriage in order to align the axis of the probe with the axis of the tightness device.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: April 4, 1989
    Assignee: Institut des Recherches de la Siderurgie Francaise-irsid
    Inventors: Jean-Claude Daverio, Frederic Grein