Patent ID: 7455198

Claim:
A manually operated trigger sprayer comprising; a sprayer housing having a pump chamber in the sprayer housing, a liquid inlet opening on the sprayer housing, a liquid supply passage extending through the sprayer housing communicating the liquid inlet opening with the pump chamber, a liquid outlet opening on the sprayer housing, the liquid outlet opening having a center axis defining an axial direction along the center axis, a liquid discharge passage extending through the sprayer housing communicating the liquid outlet opening with the pump chamber, and at least one stop surface on the sprayer housing; a pump piston mounted in the pump chamber for reciprocating movement of the pump piston between charge and discharge positions of the pump piston relative to the pump chamber; and a trigger operatively connected to the pump piston and mounted on the sprayer housing for movement of the trigger between charge and discharge positions of the trigger relative to the sprayer housing with the pump piston being moved between the respective charge and discharge positions of the pump piston in the pump chamber, the trigger having at least one pivot post on the trigger that mounts the trigger on the sprayer housing for pivoting movement of the trigger about the pivot post, and the trigger having a tab on the trigger that moves through an arc of movement in response to pivoting movement of the trigger and is positioned on the trigger to engage against the stop surface on the sprayer housing when the trigger is moved to the charge position of the trigger relative to the sprayer housing, and to disengage and move away from the stop surface when the trigger is moved from the charge position toward the discharge position of the trigger relative to the sprayer housing.