Patents by Inventor Arne Rastrom

Arne Rastrom 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).

  • Back pressure turbine for a district heating plant having a cut-off valve between the turbine and the condenser
    Patent number: 4329847
    Abstract: The invention relates to a back pressure turbine (2) for a district heating plant (15), in which a cut-off valve (22) is provided between the turbine (2) and the condenser (5). The valve makes it possible to use the turbine condenser for heating the water of the district heating system through direct supply of steam from the steam boiler (1) when the turbine is shut off.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: May 18, 1982
    Assignee: Stal-Laval Turbin AB
    Inventor: Arne Rastrom