Portable, wheeled electric sprayer with pressurized liquid reservoir

Claim 1

A lightweight pressure sprayer assembly comprising a hollow pressure vessel, a filler neck opening into the interior of an upper portion of said vessel and including a removable fluid pressure sealing closure therefor, an upstanding liquid outlet tube opening upwardly through said upper portion of said vessel from the interior thereof in sealed engagement with said upper portion, the lower end of said tube opening outwardly within a lower portion of said vessel, a flexible pressure hose having one end connected to the upper end of said tube, a tubular spray wand having one end connected to the other end of said hose, said spray wand including a discharge spray head on the other end thereof and including a control valve therefor intermediate the opposite ends of said wand for controlling the flow of liquid through said wand, and a lightweight motorized air compressor mounted on said upper portion of said vessel and having a compressed air outlet opening into the interior of said vessel in sealed engagement therewith, said air outlet opening into the interior of said neck inwardly of said closure, said closure including an exterior pressure gauge supported therefrom opening into the interior of said vessel through said closure, said neck including a manually openable and closable vent valve supported therefrom for selectively venting the interior of said vessel to the ambient atmosphere, said sprayer including wheeled support means supported from a lower portion of said vessel by which said sprayer may be readily rolled over the ground, a generally horizontal mounting plate supported from and spaced vertically above said upper portion, said motorized air compressor being mounted atop said mounting plate and including an upper handle portion from which the total weight of said sprayer assembly may be supported and by which said sprayer assembly may be hand carried and/or lifted as one desires, the vertical spacing between said upper portion and said mounting plate providing a space therebetween for said upper end of said outlet tube and said one end of said pressure hose, said pressure gauge and vent valve being supported from said closure and neck, respectively, whereby a person preparing to remove said closure for the purpose of adding liquid to the interior of said tank through said neck will be reminded to vent the interior of said tank to the ambient atmosphere through said vent valve before removing said closure.