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US 4,398,551 AGranted
Hydraulic surface cleaning apparatus
AssigneeComar, Inc.
InventorRobert M. Moorehead
Life of this patent
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Abstract
A beach or other surface cleaning method and apparatus is disclosed, wherein low density debris, particularly oil and tar residues, are removed for subsequent separation and disposal. The apparatus employs hydraulic principles to float the debris from the surface, propel the floated debris into a scoop, and lift the floated debris into a receiving trough for subsequent separation. Water employed to provide the hydraulic actions may be recirculated for continuous reuse.
Claims9
Beach cleaning apparatus comprising;
- a scoop member including
- a bottom plate inclined upwardly from a leading edge of said bottom plate with the trailing edge of said bottom plate terminating in a downwardly disposed trough member,
- means for positioning said bottom plate leading edge into juxtaposition with a planar surface to be cleaned,
- means for directing a low-velocity water stream at a predetermined acute angle from said planar surface to be cleaned and toward said bottom plate leading edge to impact said planar surface at a predetermined impact point space-separated from said bottom plate leading edge,
- means for directing a high-velocity water stream at a predetermined acute angle from said planar surface to be cleaned and toward said bottom plate to an impact point substantially coincident with said bottom plate leading edge, and
- means for translating said scoop member in a direction opposite that toward which said water streams are directed and with respect to said surface to be cleaned.
3 more elements
Dependencies are inferred from the claim text.