Dual flow disperser

摘要

A disperser system includes a disperser body that defines a substantially air-tight chamber therein. A sprayer assembly includes a passage, a fluid coupling, a nozzle, a valve, a valve trigger and a pouch. The passage is in fluid communication with the chamber. The valve is in fluid communication with both the passage and the fluid coupling and opens to the nozzle. The valve trigger is configured selectively to open the valve, thereby placing the passage and the fluid coupling in fluid communication with the nozzle. The pouch contains a fluid. When the chamber is charged with a gas and when the valve is opened, the gas flows through the passage and the fluid flows through the fluid coupling into the valve so that the gas entrains the fluid and delivers a suspension of the gas and the fluid to the nozzle, out of which the suspension is sprayed.

主权项

1. A disperser, comprising:
(a) a disperser body; (b) a collapsible pouch containing a liquid fluid; (c) a disperser cap assembly configured to form a substantially air tight seal with the disperser body so as to define a chamber therein, the pouch disposed within the chamber and engaging the disperser cap assembly, the disperser cap assembly defining a passage in fluid communication with the chamber, the passage also in fluid communication with a valve disposed in the disperser cap assembly, the disperser cap assembly also including a coupling in fluid communication with the valve and configured to puncture a portion of the pouch so as to put the valve in fluid communication with the liquid fluid, the valve opening to a nozzle, the chamber configured to contain a gas at a pressure that is greater than ambient pressure external to the chamber so that the gas in the chamber applies a pressure to the pouch; and (d) a valve trigger configured to fluidly couple the passage and the coupling to the nozzle so that gas from the chamber flows through the passage into the nozzle and so that the liquid fluid flows into the passage and is entrained by the gas flowing through the passage, such that a gas and fluid suspension is forced out of the nozzle,
the valve including an elongated valve stem that passes through the passage, the valve stem including a solid portion that blocks the passage when the solid portion is aligned with the passage, the valve stem defining a hole passing therethrough that allows gas from the chamber to pass through the passage when the hole is aligned with the passage without liquid fluid passing through the passage, the valve trigger configured to place the valve stem into a first position in which the solid portion blocks the passage so as not to allow either gas or liquid fluid to pass into the nozzle, the valve trigger also configured to place the valve stem into a a second position in which the hole is aligned with the passage so that gas from the chamber is allowed to pass through the passage without liquid fluid passing therethrough so as to clear the nozzle, the valve trigger also configured to place the valve stem into a third position in which the coupling is in fluid communication with the passage so as to allow both liquid fluid and gas from the chamber to pass into the nozzle.