A manually operated trigger sprayer includes U-shaped springs that bias
the trigger sprayer trigger away from the trigger sprayer pump chamber,
where the U-shaped springs are connected to a piston rod by a snap-fit
connection. The connection includes a compressible forward end of the
piston rod that is pressed through an opening on the forward end of the
spring to connect the piston rod to the spring. The rearward end of the
spring is connected to the sprayer housing by a curved surface that
engages around an exterior surface of the pump chamber.