Trigger type sprayer

Claim 1

In a trigger type sprayer which comprises a sprayer body provided with a cylinder through which a piston slides, said sprayer body being engageable with a liquid container; a trigger rotatably coupled to said sprayer body; a nozzle having a passageway through which a pressurized liquid flows and an ejection hole in communication with said passageway, said nozzle being coupled to said sprayer body; and spring means coupled to said trigger for urging said trigger outward; the improvement comprising: an elongated spinner assembly means integrally and unitarily formed of synthetic resin and received in said nozzle for imparting a spinning motion to the pressurized liquid before it reaches said ejection hole of said nozzle, said spinner assembly comprising: a secondary valve portion means for shutting off communication between said passageway and said ejection hole of said nozzle; a spinner portion means in said passageway for imparting said spinning motion to said pressurized liquid; and a wave-shaped, sinuous compression spring member including at least three oppositely directed, open, substantially semicircular portions, said substantially semicircular portions extending adjacent one another in the longitudinal direction of said elongated spinner assembly means and adjacent substantially semicircular portions being oppositely directed and integrally connected to each other, said compression spring member being integrally connected between said secondary valve portion means and said spinner portion means for urging said secondary valve portion means and said spinner portion means away from each other and for thereby urging said spinner portion means against said ejection hole; said compression spring member being wave-shaped and sinuous over substantially the entire length of said compression spring member and comprising said substantially semicircular portions adjacent one another over substantially the entire length of said compression spring member; and said compression spring member having opposite ends which are integrally connected respectively to said secondary valve portion means and to said spinner portion means, said opposite ends being substantially centered, at least in the plane containing the directions of undulations of said compression spring member, respectively on said secondary valve portion means and on said spinner portion means.