Patents by Inventor Knudsen, James K.

Knudsen, James K. 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).

  • Vortex shedding flow measurement
    Patent number: 4453416
    Abstract: An improved vortex shedding flowmeter sensor and method are disclosed. The vortex shedding sensor is a bistable element. The element is constrained to operate in a transition deflection region between two stable stages. The element tends to alternate states at the frequency of vortex shedding, thereby amplifying the input signal at low levels and extending the low range of flow rate measurement.
    Type: Grant
    Filed: December 15, 1981
    Date of Patent: June 12, 1984
    Assignee: The Babcock & Wilcox Company
    Inventor: Knudsen, James K.