Patents by Inventor Ronald L. Brunkalla

Ronald L. Brunkalla 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: 5247838
    Abstract: A vortex flowmeter has an elongated vortex generator in the flow passage of a body and transverse to the direction of flow. A first wing is located in the flow passage downstream of the generator and a second wing is located downstream from the first wing. A sensor is associated with each wing to provide a signal responsive to movement of the wing, and the signals are combined to have external noise components of the signals cancel each other. In one embodiment, the wings are shorter than a vortex street wavelength, and the wings are separated by a distance that is an odd multiple of the half wavelength. In another embodiment, the wings each have a length of about one wavelength.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Badger Meter, Inc.
    Inventors: William H. Vander Heyden, Craig V. Warne, Ronald L. Brunkalla