Abstract A machine for washing sand, leaves, small stones, stains, dirt and various other debris from the surface of tennis courts, driveways, parking lots and other hard surfaced areas by means of special purpose relatively high pressure jets and fans of water or other liquids comprising a network of conduits, valves are combined jet nozzle sets mounted bilaterally on the forward end of the base of a dolly''s frame in such a manner that the nozzles and jets of each set lie one above the other in strict vertical alignment being angularly oriented from the vertical so as to provide three separate and distinct spray patterns to each side of the dolly which strike the wash surface at various acute angles at varying distances from the dolly. Selective valve operation permits either right side or left side operation as well as simultaneous left and right side operation. The effect of the nozzle jet arrangement is such that the side spray wash nozzle washes the area to its immediate front, thus forcing small debris outward and away from the dolly across the wash surface into the jet stream provided by the upper jet whereupon the debris upon entering ssid jet stream is forced and floated further away from the dolly to a distance greater than that which would have been achieved by the spray eminating from the wash nozzle alone. The lower jet which directs a narrow jet of liquied immediately behind the contact point of the wash nozzle''s liquid spray fan and the wash surface serves to spread any puddles that collect on the wash surface, thereby materially assisting in reducing the drying time of the wash surface.
A device for washing and sweeping planer surface areas which is adapted to be mounted on a multi-wheeled vehicle and comprising: two ''''L'''' shaped conduits joined together at one end and adapted to receive a common source of washing fluid, the longer leg of each conduit extending parallel to the other and each being joined at its other end to a further horizontal conduit extending at roughtly right angles thereto, said horizontal conduits projecting in the same plane and parallel to one another and terminating in a set of three nozzles, each set of nozzles being generally directed outwardly in a direction perpendicular to said horizontal conduits; and each set of nozzles comprising: (1) a wash nozzle adapted to eject a broad fan knife edge spray which strikes the surface of the wash area at an angle of about 15 (2) a repulsion jet nozzle disposed above and in verticle alignment and with said wash nozzle adapted to eject a narrow stream of fluid at an angle of about 30* to the surface of the wash area and at a point slightly forward of the wash nozzle spray and, (3) a drying jet nozzle disposed below and in vertical alignment with said wash nozzle and adapted to provied a narrow jet stream which strikes the surface of the wash area at an angle of about 5* thereto at a point slightly rearward of the wash nozzle spray.
Claim 2
Independent Claim
237 words
A device for washing and sweeping planer surface areas which is adapted to be mounted on a multi-wheeled vehicle and comprising: two ''''L'''' shaped conduits joined together at one end and adapted to receive a common source of washing fluid, the longer leg of each conduit extending parallel to the other and each being joined at its other end to a further horizontal conduit extending at roughtly right angles thereto, said horizontal conduits projecting in the same plane and parallel to one another and terminating in a set of three nozzles, each set of nozzles being generally directed outwardly in a direction perpendicular to said horizontal conduits; and each set of nozzles comprising: (1) a wash nozzle adapted to eject a broad fan knife edge spray which strikes the surface of the wash area at an angle of about 15 (2) a repulsion jet nozzle disposed above and in verticle alignment and with said wash nozzle adapted to eject a narrow stream of fluid at an angle of about 30* to the surface of the wash area and at a point slightly forward of the wash nozzle spray and, (3) a drying jet nozzle disposed below and in vertical alignment with said wash nozzle and adapted to provied a narrow jet stream which strikes the surface of the wash area at an angle of about 5* thereto at a point slightly rearward of the wash nozzle spray.
Claim 3
Dependent Claim
21 words
The device of claim 1 which is adapted to be mounted on a hose dolly provided with a plurality of wheels.
Claim 4
Dependent Claim
30 words
The device of claim 2 wherein said hose dolly has two larger wheels disposed at the rear thereof and a smaller pivoting wheel disposed at the front of the dolly.
Claim 5
Dependent Claim
26 words
The device of claim 2 wherein the supply of washing fluid to each of said set of nozzles is independently controlled by a separate valve means.