Patents by Inventor Hans U. Baumgartner

Hans U. Baumgartner 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).

  • Balancing and monitoring apparatus
    Patent number: 4292769
    Abstract: A device for balancing rotating bodies including a sensing arrangement for sensing the out of balance of the rotating body and for abrasion tool at a frequency corresponding to the speed of the rotating member so as to remove material from the rotating member in phase with the working vibration in the same region of the rotating member for effecting a balancing of the rotating member. The apparatus also includes an adjusting arrangement enabling adjustment of the phase relationship of the vibration of the abrasion tool with respect to the phase relationship of the out-of-balance signal so as to effect shifting by any number of steps of 360.degree./n, n being a whole number>3, irrespective of the speed of the rotating member.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: October 6, 1981
    Assignee: Kistler Instrumente AG
    Inventors: Willi Maag, Hans U. Baumgartner, Max Vollenweider, Hans J. Wolf
  • Piezoelectric pressure and force transducers or accelerometers
    Patent number: 4016437
    Abstract: A piezoelectric transducer element which can be used in force and pressure transducers is made from a quartz element which is prestressed within the transducers. The prestress is applied within a certain orientation with respect to the lattice plane (0 4 4 3). The transducer may include both disc and rod-shaped quartz elements.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: April 5, 1977
    Assignee: Kistler Instrumente AG
    Inventors: Reto Calderara, Hans U. Baumgartner, Jan Tichy, Hans C. Sonderegger