Hose-end spraying apparatus

Claim 1

An aspiration type sprayer for attachment to a container encompassing a chemical to be diluted by a carrier stream, comprising: a. a nozzle member, said nozzle member comprising a means for attachment of said nozzle member to a source of the carrier stream and a means for controlling flow of the carrier stream; b. a cap member in operative connection with said nozzle member, said cap member including a means for attaching said cap member to the container, said cap member having disposed therein a product channel and a vent channel; and c. a control member, said control member including a product aperture and a vent means disposed therein, said control member being slideably connected to said cap member such that said control member can be longitudinally slid to a first position in which said product aperture and said vent means are in substantially linear communicative connection with said product channel and said vent channel, respectfully, thereby allowing the chemical to enter the carrier stream for dilution when the carrier stream passes over the product aperture, said control member also longitudinally slideable to a second position in which said product aperture and said vent means are not in communicative connection with said product channel and said vent channel, thereby substantially sealing the chemical within the container.