Patent ID: 9702133
Date: 2017-07-11
CPC Classifications: E03D

Claim:
1. A device for spraying an inner surface of a wall of an enclosure with a fluid, the device comprising: a reservoir for the fluid; a nozzle assembly including a nozzle through which the fluid can be sprayed on the inner surface of the wall of the enclosure, the nozzle assembly including mounting structure for attaching the nozzle near the inner surface of the wall of the enclosure, the nozzle assembly including a deflector shield wherein the deflector shield directs fluid through the nozzle in a laminar flow; a fluid conduit in fluid communication with the reservoir and the nozzle; a pump for delivering fluid from the reservoir through the fluid conduit and to the nozzle when the pump is activated; a controller in electrical communication with the pump, the controller executing a stored program to activate and deactivate the pump; and a vent assembly in fluid communication with an interior space of the reservoir, the vent assembly comprising a valve wherein the valve opens by negative pressure that develops as fluid is withdrawn from the reservoir and closes when the pressure in the reservoir has equalized.