Patents by Inventor Melvin Keener

Melvin Keener 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).

  • System for indicating water stress in crops which inhibits data collection if solar insolation exceeds a range from an initial measured value
    Patent number: 4755942
    Abstract: An apparatus and method for indicating whether irrigation of an agricultural crop is required based on the measurement of crop water stress. The apparatus and method include a plurality of sensors for sensing a plurality of conditions related to the agricultural area, including crop canopy and air temperatures, and relative humidity, from which the water stress condition of the crop can be determined, and for generating signals representative of each of the sensed parameters; an electronic device connected to the sensors receiving the sensor signals for determining therefrom the water stress condition of the crop; and an output device connected to the electronic device for visually displaying the calculated water stress index. The apparatus may be embodied in a portable unit that provides immediate analysis of environmental and crop data along with the crop water stress index.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: July 5, 1988
    Assignee: The Standard Oil Company
    Inventors: Bronson Gardner, Melvin Keener