Patents by Inventor Carl A. Litzkow

Carl A. Litzkow 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: 5646404
    Abstract: An automated system has been developed that can acquire and remotely display data indicative of infestation levels in stored agricultural commodities. The system accurately records and time stamps each insect detection, across a full range of pertinent species' sizes, as they drop through a probe containing a sensor head.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: July 8, 1997
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Carl A. Litzkow, Dennis Shuman, Sergey Kruss, James A. Coffelt
  • Patent number: 5594654
    Abstract: An automated system has been developed to count and package beneficial insect larvae or eggs and includes a funnel-shaped container which sits in the top portion of a sensor head and a turntable with multiple containers located below the sensor head, for collecting larvae or eggs as they drop through the sensor head. The system accurately records the number and time stamps each insect larva or egg detection as they drop through a sensor head.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: January 14, 1997
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Dennis Shuman, Carl A. Litzkow, Sergey Kruss, James A. Coffelt, Frederick L. Petitt, David O. Wietlisbach
  • Patent number: 5473942
    Abstract: A device and a method for locating and counting insects in agricultural commodities has been developed. Acoustic sensors pick up sounds emanating from adult and or larval insects. The electrical outputs of the sensors are amplified and analyzed to determine (1) the first sensor to detect the sound, (2) the second sensor to detect the sound and (3) the time difference between the first and second detection. These determinations are used to calculate the locations and numbers of insects in the agricultural commodity samples.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 12, 1995
    Inventors: Kenneth W. Vick, Carl A. Litzkow, Dennis Shuman
  • Patent number: 5005416
    Abstract: Detection, and optionally quantification, of insect infestation in an agricultural commodity is provided by a pitfall probe trap which permits detection of the presence or absence of live insects in the trap and optionally estimation of the number of insects in the trap. The present invention may be utilized to detect infestation by a variety of different insects such as: red flour beetle, lesser grain borer, rice weevil, rusty grain beetle, and saw tooth grain beetle; in numerous types of agricultural commodities including corn, wheat, rice, seeds, nuts, oats, barley, cotton or any similar commodity which may be infested during storage. Various embodiments are disclosed including use of the traps in a device for telemetry, in various container means for containing an agricultural commodity including e.g. truck, ship, railroad car or storage bin such as a silo or grain elevator.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: April 9, 1991
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Kenneth W. Vick, J. C. Webb, Carl A. Litzkow
  • Patent number: 4937555
    Abstract: Detection of insect infestation in an agricultural commodity is provided by piezoelectric means for generating electricity in response to vibration only of a frequency above about 500 Hertz, in vibrational communication with the agricultural commodity. The present invention may be utilized to detect infestation by a variety of different insects such as rice weevil, lesser grain borer, angoumais moth, in numerous types of agricultural commodities including corn, wheat, rice nuts, cotton, etc.. Various embodiments are disclosed including use of the piezoelectric means, on a probe, with a sample cup, in a device for telemetry, and with various container means for containing an agricultural commodity including e.g. a truck, ship, railroad car and storage bin such as a silo or grain elevator.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: June 26, 1990
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Carl A. Litzkow, J. C. Webb, Kenneth W. Vick
  • Patent number: 4671114
    Abstract: The sound created by moving and chewing of insect larvae infested inside an agricultural commodity is acoustically detected and amplified, and thereafter transduced into an electrical signal which is electrically amplified for observation.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: June 9, 1987
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Carl A. Litzkow, J. C. Webb, Shuichi Masuda