Brian Curtis Terrell, 701265 S Remington Cir, Chandler, AZ 85286

6564968, May 20, 2003

Oct 3, 2002

10/264046

Brian Terrell - Chandler AZ, 85249
John Spilotro - Tucson AZ, 85712

G01F 1106

222 63, 222334, 222341

An automatic fluid dispenser includes a pump mechanism actuated by the movement of a piston between a first position and a second position. The piston includes a resilient diaphragm that separates a pump chamber from a pressurized fluid chamber. An inlet check valve in the pump chamber, biased into a closed position, allows fluid flow only into the pump chamber from a fluid source, and an outlet check valve allows fluid flow only out of the pump chamber. A valve in a conduit, coupling the pressurized fluid chamber to a pressurized fluid source, is movable between an open position in which the pressurized fluid moves the piston to the second position, dispensing fluid from the fluid chamber, and a closed position in which the pressurized fluid is bled from the pressurized fluid chamber and the piston returns to the first position, thereby drawing additional fluid into the fluid chamber.

6206241, Mar 27, 2001

Feb 25, 2000

9/513903

Brian C. Terrell - Chandler AZ
John J. Spilotro - Tucson AZ

G01F11/06

222 63

An automatic fluid dispenser including a pump mechanism actuated by a piston movable between a first position, and a second position in which a fluid is dispensed. A conduit is coupled to the pump mechanism and couplable to a pressurized fluid source. A valve is carried by the conduit and is movable between an open position in which a pressurized fluid from the pressurized fluid source moves the piston to the second position, and a closed position stopping the pressurized fluid.