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These devices use Mist Sprayer Pumps Manufacturers technology, pre-compression valves and aerosol-like liquid pressurization. The main body of the device includes a pressure chamber, a pressure piston and a pressure spring. The device has a piston and a piston chamber. When the consumer operates the trigger, the piston chamber draws liquid from the bottle and fills the pressure chamber.

The piston chamber consists of an inlet valve and an outlet valve. Once the liquid is sufficiently pressurized, the consumer can dispense the liquid by opening the activation valve (for example, by pressing the activation button), and can stop spraying by the user stopping pressing such a button.

Once the liquid is pressurized to sufficient pressure, continuous spraying will continue to spray until the chamber is emptied. By repeatedly pulling the trigger, continuous spraying can be achieved.

By keeping the input volume greater than the pressure chamber volume, continuous spray with a smaller pump stroke can be achieved.

In the "continuous injection" embodiment, once the liquid is sufficiently pressurized, continuous injection occurs until (i) the chamber is emptied or (ii) until the pressure of the liquid in the pressure chamber becomes less than the opening of this upper outlet valve pressure.

With the advancement of technology, the products we are exposed to provide more and more comfort to people who use them. Continuous spray bottles are a good example.

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