Patents by Inventor Horst Seiffert

Horst Seiffert 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).

  • Drawing table
    Patent number: RE28767
    Abstract: A drawing table having a stand and a board linked to the stand in such a manner as to allow the board to be adjusted in position whereby the weight of the board creates a second moment about the axis opposing the first moment. A compensating means varies the second moment to compensate for variations in the first moment due to changes in the position of the board so that the board is balanced in any position.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: April 13, 1976
    Assignee: Franz Kuhlmann KG
    Inventors: Franz Kuhlmann, Arnold Gundlach, Horst Seiffert