Patents by Inventor Hans Wittfoht

Hans Wittfoht 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).

  • Method for the construction of a cable-stayed or rein-girth bridge
    Patent number: 4352220
    Abstract: Method for the construction of a cable-stayed or rein-girth bridge in which the stiffening beam is built together with the guying provided for the final state by the cycle-pushing method and brought into its final position. The guying takes over in this case the support of the stiffening beam during mounting and displacement of the bridge, so that temporary supports between the bridge piers and a temporary guying at the front end of the super-structure are not required.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: October 5, 1982
    Assignee: Polensky & Zollner
    Inventor: Hans Wittfoht