Patents by Inventor Gustav Ohnsmann

Gustav Ohnsmann 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).

  • Publication number: 20040070121
    Abstract: The open and closed metal vessel 1a, 1b, 1c, 1d serving to hold hot and to melt metals and to transport said liquid metals comprises an open and closed cavity 11 which is subtended by thermally insulating materials 3, 3a, 3b, 3c, 3e, 3f and which is seamlessly lined by an integral, exchangeable, single-layer or stratified textile, 3D-surface structure 4. Said metal vessel receives the liquid and solid metal to hold it hot or to melt it and also serves to transport the liquid metals. The heating to hold hot and to melt the metals is implemented by heater elements 6, 7 situated in the liquid metal and furthermore by heater elements 8 configured underneath the 3D-surface structure, or by induction. (9, 10). The closed metal vessel 1b is equipped with an integral, displaceable furnace riser pipe 20 on the furnace cover 16.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 15, 2004
    Inventor: Gustav Ohnsmann
  • Patent number: 6318444
    Abstract: An apparatus for charging horizontal and vertical cold chamber pressure die-casting machines with metal, includes a pressure chamber having a first end which connects to a cold chamber pressure die casting machine, and an interchangeable receptacle, arranged underneath or laterally underneath the pressure chamber, the receptacle including a riser pipe which extends upwardly from a first end immersed in molten metal in the receptacle through a gas-tight cover on the receptacle to a second end. A pressure or aspirating line is fastened on the cover and connected at a first end to the second end of the riser pipe, and is connectable at a second end to a mid-point in the pressure chamber.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: November 20, 2001
    Inventors: Gustav Ohnsmann, Gerold Bandt
  • Patent number: 6196294
    Abstract: A casting plant for low-pressure casting of molten metal with operatively and kinematically connected units in the form of linear or revolving conveying devices.
    Type: Grant
    Filed: February 22, 1998
    Date of Patent: March 6, 2001
    Inventors: Gustav Ohnsmann, Gerold Bandt, Martin Ohnsmann