Patents by Inventor Siegfried Winter

Siegfried Winter 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).

  • Working platform assembly
    Patent number: 6595322
    Abstract: A working platform assembly, includes a platform, and a scissor-type mechanism for extending and retracting the platform. The scissor-type mechanism has a plurality of superimposed pairs of arm members, thereby defining a lower first pair of arm members and at least one further second pair of arm members being positioned thereabove. The arm members of the first and second pairs of arm members have a cross section which decreases in upward direction, wherein the second pair of arm members has an upper end and includes an inner side formed with an outwardly directed slope which is realized by attaching the upper end of the arm members at a slanted angle.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: July 22, 2003
    Inventor: Siegfried Winter
  • Working platform assembly
    Publication number: 20020043425
    Abstract: A working platform assembly, includes a platform, and a scissor-type mechanism for extending and retracting the platform. The scissor-type mechanism has a plurality of superimposed pairs of arm members, thereby defining a lower first pair of arm members and at least one further second pair of arm members being positioned thereabove. The arm members of the first and second pairs of arm members have a cross section which decreases in upward direction, wherein the second pair of arm members has an upper end and includes an inner side formed with an outwardly directed slope which is realized by attaching the upper end of the arm members at a slanted angle.
    Type: Application
    Filed: December 10, 2001
    Publication date: April 18, 2002
    Inventor: Siegfried Winter