Patent ID: 7946511

Claim:
An apparatus for manual and localized spraying, said apparatus comprising; a tubular reservoir for receiving a liquid, a gripping knob mounted on one end of said reservoir, a spray assembly mounted in fluid communication on another end of said reservoir and means for supporting said spray assembly on the ground, said spray assembly including a spray means and a chamber in fluid communication with said spray means, a piston secured to said reservoir and movable inside said chamber, said piston being adapted to expel the liquid that is in said chamber towards said spray means, and to communicate said chamber in fluid communication with said reservoir, a ring for adjusting a stroke of said piston (31) and wherein in one position of said ring, a stroke of said piston is substantially zero, vent means for connecting said reservoir to the atmosphere, said vent means including a valve configured to be actuated by a user gripping said knob, said valve being movable between a closed position preventing communication between said reservoir and the outside and an open position allowing said communication, and resilient means being provided for urging said valve towards its closed position.