Backpack sprayer

Fluid sprinkling – spraying – and diffusing – With agitation of supply means

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Details

239153, 239154, 239373, 366126, B05B 908

Patent

active

056367910

ABSTRACT:
The present invention is for a backpack sprayer which has a reservoir tank fixedly attached to a support frame, the tank having a fill opening located at the top end and a pressure vessel located therein. The pressure vessel has a pump housing located therein which has a one way check valve leading into the pressure vessel, the pump housing also having a cylinder actuated by a hand crank for compressing the sprayed liquid into the pressure vessel. The pressure vessel expels the compressed liquid through a hand held wand operated by the user.

REFERENCES:
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patent: 2281142 (1942-04-01), Davis
patent: 3428255 (1969-02-01), Ballu
patent: 3844449 (1974-10-01), Alter
patent: 3966092 (1976-06-01), Ballu
patent: 4651903 (1987-03-01), Pagliai
patent: 4690331 (1987-09-01), Luchsinger
patent: 4702416 (1987-10-01), Pagliai et al.
patent: 4702419 (1987-10-01), Luchsinger
patent: 4768714 (1988-09-01), Luchsinger
patent: 4798333 (1989-01-01), Luchsinger
patent: 5150837 (1992-09-01), Ferrari
patent: 5335853 (1994-08-01), Wirz

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