Patents by Inventor Heinz Durst

Heinz Durst 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).

  • Artificial cross-country skiing practice set
    Patent number: 4135666
    Abstract: An artificial cross-country skiing practice set comprises a track formed of interfitted rail sections placed end-to-end to form parallel rolling bands receiving roller-ski members in normal skiing relationship. At least one roller of each ski member has an adjustable brake simulating resistance to advancement as when skiing on snow.
    Type: Grant
    Filed: April 5, 1977
    Date of Patent: January 23, 1979
    Assignee: Tacole Etablissement
    Inventor: Heinz Durst