Patents by Inventor Klaus Haiduk

Klaus Haiduk 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).

  • Hollow core molding apparatus
    Patent number: 4694883
    Abstract: An apparatus for producing a hollow foundry core, whereby core halves are first formed and fully hardened on an inner hollow-mold part and an outer mold-box half. These core halves are then sprayed with an adhesive and joined to form a finished foundry core. The apparatus reduces the production costs and improves the accuracy as to the size of the cores. The forming of the core halves on a center plate and the bringing together of the core halves respectively occurs by moving together both core-box halves in one operation.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: September 22, 1987
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Klaus Haiduk