Surface cleaning apparatus

Details Surface cleaning apparatus Surface cleaning apparatus

B - Operations, Transporting

08

B

15/65

B08B 3/02 (2006.01) A47L 11/30 (2006.01) E01H 1/10 (2006.01)

Patent

CA 1109613

SURFACE CLEANING APPARATUS ABSTRACT OF THE DISCLOSURE An improved apparatus and method 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.

353588

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