Surface cleaning apparatus
AssigneeMagee Enterprises Ltd.
InventorS. Jim Magee
Life of this patent
Estimating the term…
Abstract
An improved apparatus for cleaning roofs and other surfaces having both coarse and fine compacted particulate matter to be cleaned. A spray of water under pressure of 1,000 to 2,000 psi is applied from the inside of an open bottommed vacuum chamber toward the surface to be cleaned along a line at an angle across the chamber, to dislodge fine and/or coarse residue from the surface. A second spray is immediately applied following the first before the residue resettles on the surface, while at the same time a vacuum is applied to the chamber to remove the deflected spray and residue.
Claims16
A surface clearing apparatus comprising a vacuum chamber having an open bottom and an upper exhaust port, and high pressure liquid jet spraying means mounted within the chamber a predetermined height above the bottom thereof, the spraying means being comprised of a plurality of high pressure spray heads mounted along one of the front or rear of the vacuum chamber each adapted to emit a fan shaped spray at an angle toward the surface to be cleaned and being directed away from the adjacent front or rear of the chamber coextensive and noninterfering with the spray from an adjacent spray head, so as to form a substantially ungapped transverse line across the chamber along said surface.
A surface cleaning apparatus comprising a vacuum chamber having an open bottom and an upper exhaust port, liquid jet spraying means mounted within the chamber including a first plurality of jet spray nozzles spaced in a line along the inside of the front of the housing, each having a fan shaped spray pattern with a 90 degree divergence, the pattern being coextensive and noninterfering, the nozzles each being located 2 inches above the bottom of the housing and spaced 3 5/16 inches apart, and water supply means connected to said nozzles for supplying water thereto under pressure.
A surface cleaning apparatus comprising a vacuum chamber having an open bottom and an upper exhaust port, and liquid jet spraying means mounted within the chamber, including a first plurality of jet spray nozzles spaced along the inside of the housing, each having a fan shaped spray pattern, the height, spacing and angle of spray of the nozzles being predetermined so as to substantially avoid interference of the spray between each of the nozzles, yet to spray a substantially continuous line from one side of the chamber to the other at an angle to the vertical in a plane at a working level at or below the bottom of the housing, and means for supplying water under pressure thereto.
A surface cleaning apparatus comprising:
- (a) a vacuum chamber having an open truncated bottom and an upper exhaust port, the front of the bottom being lower than the rear,
- (b) a plurality of jet spray tips mounted in opposed pairs along the front and rear of the chamber, the emission axes of alternate spray tips being directed downwardly and inwardly at angles of 141/2 and 201/2 degrees, the spray tips at the front and rear being separated by about 2 inches and located about 2 inches above the bottom front of the vacuum chamber,
- (c) means for applying vacuum to the exhaust port, and
- (d) means for applying water at a high pressure to the nozzles, the vacuum pressure being sufficient to balance against the quantity and pressure of the water.
Dependencies are inferred from the claim text.