Patent ID: 7703703
Filing Date: 2010-04-27
Classification: B05B

Abstract:
1. An apparatus for spraying lawn products adapted for use with a fluid supply source and a reservoir holding said lawn products, comprising: a housing defining a mixing chamber therein; said reservoir coupled to said housing; a fluid supply source communicating a supply of a first fluid from the fluid supply source into the housing through an elongate passageway; a first passageway for communicating a first portion of the first fluid from the fluid supply source into the reservoir as a mixing fluid flow; a second passageway communicating the remaining portion of the first fluid from the fluid supply source into the mixing chamber; said housing includes a substantially cylindrically shaped cap portion having discontinuous internal threads forming flats therein, a lip portion, and an open end portion; said reservoir includes a generally cylindrically shaped neck portion having a partial exterior shoulder, external threads thereon, and an end portion; said internal threads of said generally cylindrically shaped neck portion of said reservoir interengaging said discontinuous internal threads having flats therein of said substantially cylindrically shaped cap portion; a fixed disc mounted to said cylindrically shaped cap portion of said housing; said fixed disc comprising a plurality of rectangularly shaped flow apertures; said fixed disc in loose engagement with said lip of said cap portion of said housing; one of said rectangularly shaped apertures communicates with said mixing chamber; said fixed disc further includes four circularly shaped aspirating apertures which communicate with a head portion of said housing; a rotatably adjustable disc in loose engagement with said fixed disc; said rotatably adjustable disc includes a rectangularly shaped-mixing flow aperture, a square shaped mixing flow aperture, an oval shaped mixing flow aperture and a circularly shaped mixing flow aperture any one of which may be selectively aligned with said one of said rectangularly shaped apertures communicating with said mixing chamber, the remaining apertures not aligned with said mixing chamber being aligned with said rectangular apertures of said fixed disc such that two of said remaining apertures communicate with said head of said housing; and, said rotatably adjustable disc further includes four circularly shaped aspirating apertures which align with said four circularly shaped aspirating apertures of said fixed disc; said flow apertures of said fixed and rotatable discs aligning with said mixing chamber control flow therethrough and said flow control apertures not aligned with said mixing chamber and said aspirating apertures aligned with each other aspirate said head of said housing and said reservoir; and, said partial exterior shoulder of said generally cylindrically shaped neck portion of said reservoir interengaging said open end portion of said substantially cylindrically shaped cap portion such that said end portion of said neck portion of said reservoir does not engage said fixed and rotatable discs or said lip portion of said substantially shaped cap portion enabling aspiration of said reservoir and said head portion of said cap portion of said housing past said partial shoulder, said threads of said housing and reservoir, said fixed and rotatable discs, and said flats of said housing.