Patents by Inventor Wilhelm W. A. O. Blank

Wilhelm W. A. O. Blank 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).

  • Formwork system
    Patent number: 4325532
    Abstract: In a formwork system frames are mounted between horizontal supports. The support means on the frames are offset relative to the horizontal axis so that the inversion of the frames enables the level of the upper surface thereof to be adjusted. Thus the same components can be used to make a formwork for fine finish concrete or standard finish. In an alternative embodiment the support means on the horizontal support is offset so that the adjustment can be effected by reversing the support.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: April 20, 1982
    Assignee: SGB Group Limited
    Inventor: Wilhelm W. A. O. Blank