| US 7,578,885 B2 | ||
| Concrete/asphalt wet washing system | ||
| Robert L. Mendenhall, 4420 S. Decatur Blvd., Las Vegas, Nev. 89103 (US); and Gilbert Cabrera, 4420 S. Decatur Blvd., Las Vegas, Nev. 89103 (US) | ||
| Filed on Mar. 16, 2006, as Appl. No. 11/377,975. | ||
| Prior Publication US 2007/0215176 A1, Sep. 20, 2007 | ||
| Int. Cl. B08B 3/02 (2006.01); E01H 1/04 (2006.01) | ||
| U.S. Cl. 134—6 [134/34; 15/340.1; 15/340.3; 15/340.4; 15/83] | 38 Claims |

| 1. A surface cleaning system comprising:
a storage system;
a debris collection apparatus having a housing containing a series of brushes, said housing comprising a circular cross-section
for changing a direction of debris from forward to rearward;
a water pump operable to draw water from the storage system and discharge said water through one or more spray nozzles adjacent
to, and directed into, the debris collection apparatus causing said discharged water to force debris into the debris collection
apparatus, said debris collection apparatus positioned forward of said one or more spray nozzles with said one or more spray
nozzles positioned to discharge water in a forward direction of travel of said surface cleaning system;
a debris conduit extending from near the collection apparatus to the storage container;
a drive means operable to rotatably drive the brushes about a horizontal axis such that collected debris and water is forced
from the debris collection apparatus into the debris conduit, said brushes positioned such that said brushes contact an inner
surface of the collection debris apparatus and not the ground; and
one or more water spray nozzles and/or air spray nozzles operable to force the collected debris and water through the debris
conduit and into the storage system.
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