Patent ID: 8434699

Claim:
A hose-end sprayer apparatus for attachment to a hose, said apparatus comprising: a sprayer which selectably admits throughput of a carrier stream from a hose; a container interface for interfacing with a container which contains product for mixing with a carrier stream; an adjuster which establishes a delivery condition of a carrier stream and product; said adjuster being actuable between: a first setting, wherein no carrier stream is admitted through said sprayer; a second setting, wherein solely a carrier stream is admitted through said sprayer; a third setting, wherein product is admitted into a carrier stream admitted through said sprayer; and a safety arrangement which acts to ensure a more hindered transition of said adjuster from said first setting towards said third setting than from said third setting towards said first setting, said second setting is intermediate to said first and third settings; said safety arrangement comprises: a tab disposed on said sprayer, said tab being displaceable in a direction different than a direction corresponding to a linear direction of travel of said first and second engagement portions; a first engagement portion, disposed on said adjuster, which is engageable with said tab as said adjuster transitions from said first setting to said second setting; and a second engagement portion, disposed on said adjuster, which is engageable with said tab as said adjuster transitions from said second setting to said first setting; said first engagement portion and said second engagement portion being comparatively shaped to ensure a more hindered transition of said adjuster from said first setting to said second setting than from said second setting to said first setting; wherein said first engagement portion comprises an edge configured to displace said tab as said adjuster transitions from said first setting to said second setting; wherein said second engagement portion comprises a bevel configured to displace said tab as said adjuster transitions from said second setting to said first setting.