Patents by Inventor Heinz E. Ruffner

Heinz E. Ruffner 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).

  • Gear tester for pitch measuring
    Patent number: 3936946
    Abstract: A gear testing apparatus has a probe or feeler biassed into engagement with a gear tooth flank for measurement of the flank. To lift the feeler from the tooth flank and/or to displace it to a further setting in which it can be used to measure an oppositely facing flank a mechanism is provided that requires only a momentary power input to effect the lifting or displacement. The apparatus is arranged to retain the feeler in its new setting when lifting or displacement has occurred and after said power input has been discontinued.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: February 10, 1976
    Assignee: Maag Gear-Wheel & Machine Co., Ltd
    Inventors: Heinz E. Ruffner, Meinrad Donner