Patents by Inventor William C. Biehle

William C. Biehle 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).

  • Rodent monitoring apparatus
    Patent number: 4902890
    Abstract: A rodent monitoring apparatus comprises a passageway defined by a horizontal member and two vertical members, an infrared light beam directed across the passageway, and an electronic counter circuit configured to monitor the number of times the light beam is interrupted.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: February 20, 1990
    Inventor: William C. Biehle
  • Apparatus for measuring flow-rate of electromagnetic granular media
    Patent number: 4552017
    Abstract: An apparatus for measuring the flow-rate of ferromagnetic granular media in a gravity-fed and/or low velocity peening apparatus by passing the media in the supply line at substantially constant head pressure through an inductive transducer, wherein the current drawn by the induction coil varies in accordance with changes in the flow-rate.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: November 12, 1985
    Assignee: Metal Improvement Company, Inc.
    Inventor: William C. Biehle