Patent ID: 7635097

Claim:
An automated sprayer for spraying an enclosure with a liquid cleanser, the sprayer comprising: a bottle suitable to contain a liquid cleanser, a reservoir tray having an upwardly extending well for supporting the bottle in an inverted orientation; a spray head having an outlet orifice through which cleanser from the bottle can be expelled if there is such liquid cleanser in the bottle; a dispenser line in fluid communication with the well and the spray head; a piercing post extending from the reservoir tray into the bottle at the cap, the piercing post including a cleanser conduit in fluid communication with the well for delivering cleanser to the well, the piercing post further including an air vent path separate from the cleanser conduit, the piercing post only being operable with the bottle, wherein the cleanser conduit terminates at a first opening of the piercing post, and the air vent path terminates at a second opening of the piercing post; and a valve for controlling outflow of cleanser from the well, the valve being located downstream of the piercing post.