Patents by Inventor John C. Bohnhoff

John C. Bohnhoff 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: 5083459
    Abstract: A meter for determining flow rates and total volume of fluids normally mixed with a gas and delivered with a pulsating rather than a uniform flow rate, such as milk being delivered from a milking machine. The unit includes a housing having an upper, baffled, receiving chamber which initially reduces flow velocity and a second, lower chamber, having baffles or weirs for turbulence reduction prior to passage of the fluid through a particularly designed, double tapered orifice, to a measuring chamber. Within the second chamber, air and foam is separated from the milk prior to flow measurment. A plurality of electrically operated, vertically arranged probes are provided within the measuring chamber and these probes are rapidly monitored to determine the level of milk as passed through the orifice. The pulsating but relatively laminar flow causes the liquid level to oscillate between probes and the processing of the rapidly scanned probes provides data to determine the true flow rate.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: January 28, 1992
    Inventors: Leroy R. Lind, Lawrence Arvidson, John C. Bohnhoff