Patent ID: 6921001

Claim:
A hydraulic proportioning system comprising: a fluid actuated motor having a driven motor shaft, the motor being in fluid communication with a fluid source; a first pump having a drive shaft, an inlet and an outlet, the inlet of the first pump connectable to a first chemical; a drive clutch connected to the driven motor shaft and the drive shaft; an injector manifold in fluid communication with the fluid source and having an inlet in fluid communication with the outlet of the first pump, wherein the injector manifold has an outlet; a reaction tube in fluid communication with the injection manifold outlet, the reaction tube comprising: an inlet; an outlet; and a check valve connected to the outlet; a chamber, wherein the reaction tube is disposed to extend into the chamber and wherein the chamber comprises: a chamber inlet in fluid communication with the fluid source; and a chamber outlet; a check valve the check valve being in fluid communication with the outlet of the first pump and the inlet of the injector manifold; and a second pump, connected to the drive shaft of the first pump and powered thereby, and a second chemical wherein the second chemical mixes with the first chemical in the reaction tube and then mixes with fluid from the fluid source in the chamber and are discharged from the chamber outlet, the second pump comprising: an second pump inlet; a second pump outlet; and a second pump check valve in fluid communication with the second pump outlet and the injector manifold inlet.