Patents by Inventor Heinrich Hack

Heinrich Hack 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).

  • Process and apparatus for the centering of bodies of rotation having uneven mass distribution along their shaft axis
    Patent number: 4300197
    Abstract: The invention relates to a process and apparatus for the centering of rotational bodies having uneven mass distribution along the shaft axis, particularly crankshafts, in a dynamic centering machine, whereby a working axis is obtained by shifting both ends of the rotational body as opposed to the axis of rotation of the dynamic centering machine.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: November 10, 1981
    Assignee: Carl Schenck AG
    Inventors: Harald Schonfeld, Heinrich Hack, Ludwig Arras
  • Method for controlling the weight correction of workpieces prior to finish-machining
    Patent number: 3932053
    Abstract: In the weight correction of workpieces prior to finish-machining, such as connecting rods, the dimensions of the pre-machined surfaces are measured and employed as a factor in the adjustment of the machine tool for weight correction of the workpieces, for example, by machining material off or adding material onto the workpiece, so that the workpiece will have the desired weight characteristics after final machining.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: January 13, 1976
    Assignee: Firma Carl Schenck AG
    Inventor: Heinrich Hack