Patent ID: 6997395

Claim:
A fluid injection and recovery device comprising: a main tank capable of containing a fluid; a filter unit which is connected to the main tank and is capable of filtering the fluid contained in the main tank; a fluid sprayer which is connected to the filter unit and sprays the fluid filtered by the filter unit over an object; and a recovery unit which is connected to the main tank and is capable of recovering, into the main tank, at least, the fluid sprayed over the object and which includes a suction hose connected to the main tank, and a nozzle including a nozzle body connected to a top end of the suction hose, said nozzle body including an opening, which can be placed facing the object and a suction hole for sucking in at least the fluid sprayed over the object wherein a top end of the fluid sprayer is connected to the nozzle in such a way that said fluid is only sprayed from said nozzle opening when a sufficiently negative pressure is established within the nozzle body from the suction hose.