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US 6,805,149 B1Granted
Hose-end chemical delivery system
AssigneeE-Z Flo Injection Systems, Inc.
InventorDan Gilmore
Life of this patent
Estimating the term…
Abstract
A chemical delivery system having a body defining a main fluid flow passage through which a fluid passes and a storage tank for holding a chemical. An inlet nozzle delivers a quantity of the fluid in the main fluid flow passage to the storage tank to be mixed with the chemical and an outlet nozzle returns a quantity of the mixed fluid to the main fluid flow passage.
Claims37
A method for injecting a chemical into a flow of fluid in a main fluid flow passage, comprising:
- diverting a quantity of fluid from the main fluid flow passage to a storage tank via an inlet nozzle to mix the diverted fluid with a chemical stored within the storage tank;
- returning a quantity of the fluid mixed with the chemical from the storage tank to the main fluid flow passage via an outlet nozzle;
- and
- directing a quantity of fluid from the main fluid flow passage to an outlet nozzle trap associated with the outlet nozzle to fill the outlet nozzle trap to control venting of air from the storage tank to the main fluid flow passage via a vent port associated with the outlet nozzle.
1 more element
A chemical delivery system, comprising:
- a body defining a main fluid flow passage through which a fluid passes;
- a storage tank for holding a chemical;
- an inlet nozzle by which a quantity of the fluid in the main fluid flow passage is delivered to the storage tank to be mixed with the chemical;
- an outlet nozzle, having a vent port, by which a quantity of the fluid mixed with the chemical is returned to the main fluid flow passage from the storage tank;
- an outlet nozzle trap in fluid communication with the vent port of the outlet nozzle;
- and
- a fill control port for directing fluid from the main fluid flow passage to the outlet nozzle trap to fill the outlet nozzle trap to control venting of air from the storage tank to the main fluid flow passage via the vent port.
4 more elements
A system for injecting a chemical into a flow of fluid in a main fluid flow passage, comprising:
- means for diverting a quantity of fluid from the main fluid flow passage to a storage tank via an inlet nozzle to mix the diverted fluid with a chemical stored within the storage tank;
- means for returning a quantity of the fluid mixed with the chemical from the storage tank to the main fluid flow passage via an outlet nozzle;
- and
- means directing a quantity of fluid from the main fluid flow passage to an outlet nozzle trap associated with the outlet nozzle to fill the outlet nozzle trap to control venting of air from the storage tank to the main fluid flow passage via a vent port associated with the outlet nozzle.
1 more element
Dependencies are inferred from the claim text.