Lawrence Allen Thomas

US Patent:

20130043321, Feb 21, 2013

Filed:

Aug 17, 2011

Appl. No.:

13/211518

Inventors:

Lawrence Eric THOMAS - West Chicago IL, US
Jahir Leonardo Caro - Chicago IL, US

Assignee:

Spraying Systems Co. - Wheaton IL

International Classification:

B05B 1/20

US Classification:

239 1, 239159, 239589

Abstract:

A liquid spraying system comprising a plurality of spray nozzles mounted in dependent fashion a liquid supply boom that travels in a field in a direction of movement. The liquid spray nozzle each have a first liquid discharge orifice and deflector flange for directing discharging liquid at a first angle to the vertical in a leading direction, and a second discharge orifice and deflector flange for simultaneously directing liquid in a trailing direction from a different elevation and at a second angle to the vertical different from the first angle for complete coverage of plant foliage.

US Patent:

48219274, Apr 18, 1989

Filed:

Mar 16, 1987

Appl. No.:

7/026005

Inventors:

Gary Paulsen - Geneva IL
Lawrence E. Thomas - Carol Stream IL
Stephen C. Reif - Naperville IL
Wade R. Brown - St. Charles IL

Assignee:

Spraying Systems Co. - Wheaton IL

International Classification:

G01F 1106

US Classification:

222263

Abstract:

A gun is provided for repeatedly dispensing precisely metered quantities of liquid from a pressurized source. The gun includes a valve spool axially slidable within a valve chamber and having at least first and second blocking members for blocking the inlet and outlet ports of the valve chamber. An actuating member associated with the gun is responsive to a unidirectional force to impart relative axial sliding movement of the blocking members in the valve chamber. The relative axial sliding movement of the blocking members sequences the valve spool through a series of positions including the following: (1) a first position that blocks the outlet port of the valve chamber, while permitting the flow of pressurized liquid into a metering chamber of the gun, (2) a second position for stopping the flow of pressurized liquid by simultaneously blocking both the input and output ports of the valve chamber, and (3) a third position that blocks the inlet port of the valve chamber, while permitting communication between the liquid contained in the metering chamber and a discharge nozzle of the gun.

US Patent:

46500995, Mar 17, 1987

Filed:

Apr 4, 1984

Appl. No.:

6/596654

Inventors:

Gary Paulsen - Geneva IL
Lawrence E. Thomas - Carol Stream IL

Assignee:

Spraying Systems Company - Wheaton IL

International Classification:

G01F 1106

US Classification:

222263

Abstract:

A liquid dispensing gun for repeatedly dispensing precisely metered quantities of liquid from a pressurized source. The gun comprises a hollow body having a valve chamber and a metering chamber connected thereto by a control orifice. An axially slidable valve spool in the valve chamber and a trigger operated actuating plunger serve to govern the reciprocation of a metering piston in the metering chamber and the admission and discharge of metered quantities of liquid to and from the metering chamber.

US Patent:

46678808, May 26, 1987

Filed:

Feb 21, 1985

Appl. No.:

6/703816

Inventors:

Gary Paulsen - Geneva IL
Lawrence Thomas - Carol Stream IL

Assignee:

Spraying Systems Co. - Wheaton IL

International Classification:

B05B 726

US Classification:

239304

Abstract:

A spraying system having a plurality of separate pressurized fluid supply sources, a spray gun having a discharge nozzle and a plurality of fluid inlet ports corresponding to the number of supply sources and each communicating with the discharge nozzle, lines coupling each supply source to a respective one of the inlet ports, and a selectively operable discharge control associated with the spray gun for permitting passage of fluid through the discharge nozzle from any one of the plurality of supply sources, for enabling the simultaneous passage of fluids through the nozzle from a plurality of the supply sources, and for preventing the passage of fluids through the nozzle from all of the supply sources. The discharge control includes an individual spring biased valve assembly in each inlet port and a single control lever that is movable between an operative position for actuating selective of the valve assemblies and an inoperative position in which none of the valve assemblies are actuated.