NON-AEROSOL LIQUID SPRAY DEVICE WITH CONTINUOUS SPRAY

摘要

Aerosol-free spray devices are provided. According to some embodiments, a spray device includes a piston operable within a piston chamber and coupled to a vacuum plunger operable within a vacuum chamber. A charger is operable to move the piston and the vacuum plunger in a first direction to generate a vacuum in the piston chamber and the vacuum chamber, thereby drawing liquid into the piston chamber. The vacuum in the vacuum chamber acts on the piston to pressurize the liquid in the piston chamber. A spray actuator is operable to open a spray valve, thereby causing the vacuum in the vacuum chamber to force the plunger and the piston to move opposite the first direction, and forcing the liquid in the piston chamber through a spray nozzle as a liquid spray. According to other embodiments, a spring replaces the vacuum chamber and vacuum plunger.

主权项

1. A spray device comprising:
a body defining a reservoir configured to hold content; a first chamber configured to receive the content from the reservoir; a piston positioned in the first chamber; a second chamber; a vacuum plunger positioned in the second chamber; a charger operably connected to the piston and the vacuum plunger and operable to displace the piston and the plunger to create a vacuum in the second chamber and draw the content from the reservoir into the first chamber, wherein the vacuum in the second chamber imposes a force on the vacuum plunger and the piston to pressurize a quantity of the content in the first chamber; and a spray assembly in communication with the first chamber and operable to spray the content from the spray device.