Patents by Inventor Max H. Parks

Max H. Parks 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).

  • Liquid distribution system
    Patent number: 5407134
    Abstract: A liquid distributor having a pair of variable displacement pumps driven by a single electric motor, the rotation speed of which is determined by a voltage from a controller in response to a predetermined ground speed and application rate which mixes a chemical with water in a desired proportion and delivers a solution to be directed into an open furrow just prior to the furrow being covered with dirt.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: April 18, 1995
    Assignee: FMC Corporation
    Inventors: Allen C. Thompson, Max H. Parks