Patents by Inventor Gunnar Cervin

Gunnar Cervin 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).

  • Work-facilitating apparatus for lining converters, metallurgical furnaces, holding vessels and like equipment
    Patent number: 4033463
    Abstract: An apparatus for facilitating the conveyance of material and the erection of walls of closed circumference from bricks, such as refractory bricks, and particularly for lining converters, metallurgical furnaces, such as blast-furnaces, holding vessels etc. includes a vertical frame for supporting a working platform. The apparatus further includes a conveyer means comprising a vertical conveyance path for conveying material to the platform and a supply path for conveying material to the vertical conveyance path. The vertical conveyance path and the supply path are constituted by two runs of an endless conveyor. One of the runs is extendable by shortening of the other run and vice versa.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: July 5, 1977
    Assignee: Cervinter AB
    Inventor: Gunnar Cervin