Patents by Inventor Alfred Sturm

Alfred Sturm 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: 4621674
    Abstract: The carbon anodes of aluminum reduction cells are suspended on anode rods. The lower part of these rods viz., the anode pins or stubs can be anchored in the carbon anode by pouring cast iron into suitably shaped anode pin or stub holes which are at least partially undercut at the sides.A horizontal layer of cast iron at least some millimeters thick is formed between the floor of the pin or stub holes and the lower face of the anode pins or stubs.The cast iron poured into the spaces around the anode pins or stubs heats these to over 400.degree. C. The mass of the cast iron poured in is smaller than the mass of the lower part of the anode pin or stub to be enclosed.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: November 11, 1986
    Assignee: Swiss Aluminium Ltd.
    Inventors: Horst Kaiser, Ulrich Heinzmann, Alfred Sturm
  • Patent number: 4218300
    Abstract: The covering sytem for a conventional fused salt electrolytic cell for the reduction of aluminum oxide to metallic aluminum comprises individual lids (4) butting onto each other at the sides and inclined downwards from the anode beam (1) to the edges (5) of the long sides of the reduction pot. The lids (4) are provided with a support (6) which rests on a rail (13) when the anode beam is in the raised position. As the anode beam (1) is lowered, the lids (4) slide over the long edges (5) of the pot, until they are supported by the stops (7) mounted on the lower third part of the lid (4). On lowering the beam (1) further, the supports (6) slide on the anode beam (1). The anode rods (2) are enclosed at the sides by the lids (4).
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: August 19, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventor: Alfred Sturm
  • Patent number: 4172018
    Abstract: A process and electrolytic cell are described for the production of aluminum whereby the feeding of the cell with fresh alumina, including the breaking of the crust of solidified electrolyte, is carried out in at least one space running transverse to the longitudinal axis of the cell.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: October 23, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventors: Hermann Moix, Alfred Sturm