Abstract: A substance delivery apparatus, such as a spraying apparatus, that includes an adjustment element for regulating the flow of at least one substance between at least one inlet and at least one outlet. The adjustment element is displaceable between a first position, corresponding to a first delivery condition of the at least one substance, and a second position, corresponding to a second delivery condition of the at least one substance, and the adjustment element comprises at least one sealing element for facilitating airtight fluid communication in association with at least one of the first and second delivery conditions.

Abstract: A sprayer head is provided for attachment to a container containing a chemical product to be diluted by a carrier stream. The sprayer head includes a hose attachment member having structure for attaching the sprayer head to a source of the carrier stream. The sprayer head also includes a cap member, including structure for attaching the sprayer head to the container and a control mechanism movably connected to the cap member for controlling fluid communication between the cap member and the container. The control mechanism can be either reciprocated or rotated so that the sprayer head can be used either to spray a low viscosity liquid product in varying dilutions or to dilute and spray a mixture of high viscosity liquid, gelatinous or powdered product and carrier stream fluid. The control mechanism includes a seal member having product apertures of increasing sizes for controlling the varying dilutions.

Abstract: A sprayer head is provided for attachment to a container containing a chemical product to be diluted by a carrier stream. The sprayer head includes a hose attachment member having structure for attaching the sprayer head to a source of the carrier stream. The sprayer head also includes a cap member, including structure for attaching the sprayer head to the container and a control mechanism movably connected to the cap member for controlling fluid communication between the cap member and the container. The control mechanism can be either reciprocated or rotated so that the sprayer head can be used either to spray a low viscosity liquid product in varying dilutions or to dilute and spray a mixture of high viscosity liquid, gelatinous or powdered product and carrier stream fluid. The control mechanism includes a seal member having product apertures of increasing sizes for controlling the varying dilutions.