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US 2020/0232170 A1Published application
Grinder head
AssigneeWaterblasting, LLC
InventorJames P. Crocker
Life of this patent
Estimating the term…
Abstract
A grinder head for high pressure mobile cleaning of roadways. The grinder head combines a rotating spinner member having polycrystalline diamond cutting tips which work in combination with ultra-high pressurized fluid for removing roadway stripes and the like matters from a roadway with damaging the underlying surface. The cutting tips having a polycrystalline diamond cutting material and are positioned along an outer rim of the spinner member in either a single or staggered position.
Claims11
A grinder head for removal of surface coatings comprising:
- a spindle having a proximal end and a distal end with a centrally disposed fluid conduit extending therebetween, said proximal end of said spindle securable to a hydraulic motor for rotation thereof, said fluid conduit having an inlet fluidly coupled to a high pressure fluid source;
- a spinner member having a centrally disposed hub secured to a distal end of said spindle, said spinner member having a plurality of spaced apart bridges extending outwardly from said hub in a spoke-like format to an outer rim, a lower surface of said spaced apart bridges each having a plurality of apertures fluidly coupled to said spindle fluid conduit;
- a spray nozzle attached to each said aperture, each said spray nozzle for dispersing high pressure fluid introduced through said spindle fluid conduit;
- a plurality of cutting tips releasably secured to a lower surface of said outer rim, said cutting tips positioned outboard from said spray nozzles with a frontal face secured at a predetermined angle and distance from a roadway for grinding paint strips therefrom;
- whereby said cutting tips and said spray nozzles expedite removal of roadway paint strips by a combination of grinding and high pressure fluid.
2 more elements
Dependencies are inferred from the claim text.