Spray apparatus with flow tube assembly

A hose end sprayer configured for connecting to a hose and at least one container, the hose end sprayer comprising:

• a main housing sub-assembly having a main housing bore, wherein the main housing bore has a first main bore inlet configured to accept a first substance from the hose, a second main bore inlet configured to accept a second substance from the container, and a main bore outlet;
• a flow tube assembly disposed within the main housing bore and slideably displaceable relative thereto between a first position allowing delivery of neither of the first substance and the second substance through the main bore outlet, and a second position allowing delivery of a mixture of the first and second substances through the main bore outlet, wherein the flow tube assembly has an upstream end and a downstream end;
• a nozzle disposed at the outlet of the main housing bore, wherein the nozzle includes an interference member configured to selectively interfere with the downstream end of the flow tube assembly when the flow tube assembly is in the second position;
• wherein the nozzle is configured to alter a flow of at least one of the first substance and the second substance delivered though the main bore outlet;
• wherein the nozzle further comprises a first nozzle opening and a second nozzle opening;
• wherein the nozzle is positionable between a first nozzle position in which the first nozzle opening is in fluid communication with the main bore outlet, and a second nozzle position in which the second nozzle opening is in fluid communication with the main bore outlet;
• wherein the first nozzle position corresponds to a first spray pattern and the second nozzle position corresponds to a second spray pattern;
• wherein the first spray pattern is a dispersed spray pattern and wherein the second spray pattern is a straight stream pattern;
• wherein the interference member is configured to interfere with the downstream end of the flow tube assembly when the flow tube assembly is in the second position and when the nozzle is in the first nozzle position;
• wherein the interference member comprises a convex tapered surface;
• and wherein the convex tapered surface includes a cam ramp configured to lift the downstream end of the flow tube assembly and lower the nozzle when the flow tube assembly is in the second position.

A hose end sprayer configured for connecting to a hose and at least one container, the hose end sprayer comprising:

• a main housing sub-assembly having a main housing bore, wherein the main housing bore has a first main bore inlet configured to accept a first substance from the hose, a second main bore inlet configured to accept a second substance from the container, and a main bore outlet;
• a flow tube assembly disposed within the main housing bore and slideably displaceable relative thereto between a first position allowing delivery of neither of the first substance and the second substance through the main bore outlet, and a second position allowing delivery of a mixture of the first and second substances through the main bore outlet, wherein the flow tube assembly has an upstream end and a downstream end;
• and
• a nozzle disposed at the outlet of the main housing bore;
• wherein the flow tube assembly comprises an upstream flow assembly member and a downstream flow assembly member configured to be connected together;
• and
• wherein the upstream flow assembly member has a tapered male seal end which is configured to be insertable into a female seal end of the downstream flow tube assembly member;
• wherein the main housing bore is configured to prevent the upstream flow assembly member and the downstream flow assembly member from disconnecting when inserted in the main housing bore.