Patent ID: 6899282

Claim:
An injection spraying system comprising: a water tank having an inlet and an outlet; a check valve means to prevent back flow to said water tank, said check valve means having a hinged flap closing against a valve seat and being positioned within said outlet of said water tank; a mixing globe fixedly attached to said outlet of said water tank, said check valve means being interposed between said water tank and said mixing globe, wherein said mixing globe has a cylindrical shape; and wherein flow of water and additives therein is tangential; a pump means for pressurizing water to be sprayed, said pump means having an inlet pipe and an output conduit; said inlet pipe being in fluid connection with said outlet of said water tank and said output conduit being in fluid connection with said unloader chamber means; a worm gear means for reducing revolutions in said pump means to one revolution of an injector bank drive shaft for each gallon of water pumped by said pump means, said injector bank drive shaft being connected to said worm gear means and extending therefrom; a clutch means for regulating injection of additives attached to said worm gear means; a plurality of injection chambers connected to said clutch means and having said injector bank drive shaft extending therethrough, each injection chamber comprising: a dipper chamber; and a float valve chamber in fluid connection with said dipper chamber, wherein each injection chamber connects to a common injection conduit; a plurality of additive storage tank means for supplying additives respectively to each float valve chamber, said plurality of additive storage tank means being removably connected to each float valve chamber by an additive delivery means for maintaining additives in each float valve chamber; and an unloader chamber means for controlling leakage during spraying connected to said outlet of said pump means, having a fluid by-pass conduit in fluid connection with said outlet of said water tank between said check valve means and said mixing globe and an unloader valve connecting to a pulse cushion and a discharge hose.