All plastic trigger sprayer

A trigger operated dispensing device for mounting to a container, said device comprising:

• a body made of plastic material and having a pumping chamber therein;
• said pumping chamber having an open outer end and an inner back wall;
• a pumping mechanism associated with said body and including a plastic piston situated in said pumping chamber and a plastic trigger coupled to said body,;
• non-metal biasing means situated between said trigger and a position on said body located rearwardly of said trigger exterior of said pumping chamber for biasing said piston out of said pumping chamber;
• non-metal fluid inlet means and non-metal fluid outlet means associated with said pumping chamber and at least one of said inlet means and outlet means being a plastic flap valve;
• non-metal means for coupling said body to the container;
• and
• said trigger operated dispensing device having only parts made of non-metal material therein.