Portable battery powered sprayer

Claim 1

A portable spraying device for spray application of liquids, said device comprising: a portable tank adapted to hold liquids to be sprayed and having a size and weight to be carried on the person, said tank having a bottom and a top presenting a fill opening through which liquids may be supplied to the tank; a spray wand adapted to be held in the hand, said wand having a discharge nozzle for spraying liquids delivered to the wand; a pipe presenting a liquid tight chamber therein and having a length to extend from said fill opening to a location adjacent the bottom of the tank, said pipe having a top end carrying a cap thereon; means for establishing a threaded connection between said cap and tank for holding said pipe in extension through the fill opening in a manner to submerge the pipe in the liquid in the tank, said threaded connection permitting removal of said pipe from the tank to expose the fill opening; a battery powered pump mounted in said chamber in the pipe, said pump having an intake side situated outside of the chamber adjacent the bottom of the tank at a location to draw in liquid from the tank and a discharge side located with said chamber; a rechargeable battery pack mounted in said chamber above the pump and electrically coupled with said pump to supply electrical operating power thereto; an elongate flexible hose having an inlet end connected with said discharge side of the pump at a location within said chamber, said hose extending in said chamber and through said cap and connecting with said wand to deliver liquid thereto when the pump is activated; switch means for activating and deactivating said pump; a battery charging terminal on said cap for connection with a battery charger for charging of the battery; and said pipe being removable to remove the pipe, pump, battery pack and hose as a unit from the tank.