Patents by Inventor Donald B. Koretz

Donald B. Koretz 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).

  • Patent number: 5136527
    Abstract: A surface finish measuring device for gear teeth. The device includes a probe for tracing an involute surface such of a gear tooth, a computer numerical control (CNC) machine for receiving perimeters relating to the geometry of the structure being measured and rotating the structure at a preferably constant angular velocity; and a computer for determining which measured points on the involute surface are to be used by a display device such as a strip chart recorder to graphically illustrate, in a highly magnified fashion, the topography of the involute surface being measured. The present invention overcomes the problems associated with the rate at which the distance between consecutive measurements changes when measuring an involute surface to provide a collection of relatively evenly spaced measurement points.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: August 4, 1992
    Assignee: Precision Devices, Inc.
    Inventor: Donald B. Koretz