Patents by Inventor David Robin Leard

David Robin Leard 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: 5695121
    Abstract: A self contained portable sprayer system including a tank for receiving a fluid mixture and has a top portion with a cap coupled by a threadable connection. The tank has a flat bottom portion. A fluid release valve with a fluid release tube threadably connected to the top portion of the tank. The release valve has a pair of flexible hoses. A pressure switch that has an air receiving tube at one end threadably connected to the top portion. The pressure switch has a pressure hose. A pressure release valve is positioned on the top portion of the tank. A towing hitch for carrying the tank has, an elongated vertical portion, a short vertical portion, and a flat lower portion. The elongated portion has a distal side with a pair of wheels, and one shelf supporting a power source. The lower portion seats the tank when positioned within the towing hitch. Lastly, a cyclic air pump is positioned on another shelf of the elongated portion and forces air into the tank.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: December 9, 1997
    Inventors: Richard Harlan Stillions, Jr., Thomas Allen Agostinelli, Sr., Jack Reed Tidwell, Sr., David Robin Leard