Patents by Inventor Charles Fleck

Charles Fleck 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).

  • Acoustic viscometer and method of determining kinematic viscosity and intrinsic viscosity by propagation of shear waves
    Patent number: 6439034
    Abstract: An acoustic viscometer and method for determining both the kinematic viscosity and the intrinsic viscosity of a liquid which includes an acoustic wave generator, a transmitting piezoelectric transducer, a receiving piezoelectric transducer, and a phase-shift detector. The transmitting piezoelectric transducer is positioned so as to be in contact with the liquid and is operably connected to the acoustic wave generator. The transmitting piezoelectric transducer propagates a longitudinal wave of known frequency through the liquid. The receiving piezoelectric transducer is spaced apart from the transmitting piezoelectric transducer and detects the longitudinal wave and a corresponding shear wave propagated through the liquid.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: August 27, 2002
    Assignee: Conagra Grocery Products Company
    Inventors: William A. Farone, Robert F. Sacher, Charles Fleck