Patent ID: 7942291

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 and communicating the liquid inlet opening with the pump chamber, a liquid outlet opening on the sprayer housing, and a liquid discharge passage extending through the sprayer housing and communicating the liquid outlet opening with the pump chamber; a pump piston mounted in the pump chamber for reciprocating movement between charge and discharge positions of the pump piston in the pump chamber; a trigger mounted on the sprayer housing for movement of the trigger relative to the sprayer housing; a spring mounted between the sprayer housing and the trigger; a piston rod projecting from the pump piston and engaging with the trigger; and a breakable connection between the piston rod and the spring, the breakable connection between the piston rod and the spring being constructed to break in response to relative movement between the piston rod and the spring.