Patents by Inventor Grover Lloyd

Grover Lloyd 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).

  • Rainfall control for irrigation systems
    Patent number: 4919165
    Abstract: An irrigation system control apparatus which includes an adjustable float switch mounted within a rain collector receptacle which switch is actuated in response to a predetermined amount of rainfall to terminate the operation of the motor and pump assembly of the irrigation system.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: April 24, 1990
    Inventor: Grover Lloyd