Patents by Inventor Jan W. Menger

Jan W. Menger 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: 4628520
    Abstract: A counting apparatus for counting objects, such as chicks, passed in succession over a conveyor belt through a light beam present between a light source and a photodetector, in which the photodetector produces a detection signal upon each passage of an object through the light beam, which detection signal is applied to a voltage-to-frequency converter for conversion into a frequency varying in accordance with the magnitude of the detection signal, and which detection signal is also applied to a pulse former for conversion into a count pulse whose width is indicative of the period of time required for an object to pass by; wherein the number of cycles of the frequency is counted in a data counter during the period of time that a count pulse is present, and the count pulse is applied to an object counter in response to the data counter having counted a given number of cycles.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: December 9, 1986
    Assignee: Staalkat B.V.
    Inventor: Jan W. Menger