Hose nozzle apparatus and method
AssigneeWaterShield LLC
InventorRobert M. Marino
Life of this patent
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Abstract
A device and method are provided for regulating two types of flow from a nozzle. The first flow is a deluge stream and the second flow is a fog spray. The deluge stream is controlled by the nozzle operator using a first flow control valve, such as a ball valve. The fog spray is controlled by the nozzle operator using a second flow control valve. The nozzle permits the nozzle operator to manually control the flow of the nozzle, thereby permitting quick regulation and adjustment of flow types and amounts to accommodate then existing fluid pressure and supply conditions to address fluid application needs.
Claims14
A metering valve, comprising:
- a body having an inlet and an outlet;
- a flow chamber between the inlet and the outlet;
- a plunger body receiver rigidly mounted in a center of the flow chamber, the receiver comprising a tapered end proximate to the fluid inlet that diverts fluid flowing in the inlet away from a center of the flow chamber and into an annular portion of the flow chamber between the plunger body receiver and an inner diameter of the body;
- a plunger body moveable within a cavity associated with the plunger body receiver, the plunger body having a closed position wherein a nose portion of the plunger body contacts a sealing surface disposed on the nozzle body.
A method of adjusting a fluid stream in a nozzle, comprising:
- initiating a flow of fluid into a fluid inlet associated with a nozzle, the fluid inlet leading to a flow chamber, the flow chamber terminating in a fluid outlet having a variable diameter;
- and
- automatically varying the diameter of the outlet in response to variations in a flow rate, wherein the diameter of the outlet is increased in response to increases in the flow rate and the diameter of the outlet is decreased in response decreases in the flow rate;
- wherein automatically varying the diameter of the outlet substantially maintains the inlet pressure at a predetermined pressure.
Dependencies are inferred from the claim text.