Finned Grinding Disc Device

Abstract

A finned grinding disc device includes a hub having a connection hole configured for attachment to a grinder. A peripheral flange is coupled to and extends outwardly from a peripheral edge of the hub. The peripheral flange is shaped to define a plurality of fins around the peripheral edge of the hub. A plurality of grinding elements is arranged into sets of grinding elements. Each set is positioned on an associated one of the fins along a leading edge of the associated one of the fins.

I claim: 
     
         1 . A finned grinding disc device comprising:
 a hub, said hub having a connection hole wherein said hub is configured for attachment to a grinder;   a peripheral flange coupled to and extending outwardly from a peripheral edge of said hub, said peripheral flange being shaped to define a plurality of fins extending from and around said peripheral edge of said hub, each of said fins having a leading edge and a trailing edge; and   a plurality of grinding elements, said plurality of grinding elements being arranged into sets of grinding elements, each set of grinding elements being positioned on an associated one of said fins along said leading edge of said associated one of said fins.   
     
     
         2 . The finned grinding disc device of  claim 1 , further comprising each of said grinding elements having a plurality of planar facets facing said leading edge of said associated one of said fins. 
     
     
         3 . The finned grinding disc device of  claim 2 , further comprising said peripheral flange having a planar grinding surface, each of said facets extending perpendicularly from said planar grinding surface of said peripheral flange. 
     
     
         4 . The finned grinding disc device of  claim 1 , further comprising each of said grinding elements having a polygonal shape. 
     
     
         5 . The finned grinding disc device of  claim 4 , further comprising said polygonal shape being a star shape. 
     
     
         6 . The finned grinding disc device of  claim 5 , further comprising said star shape being a five pointed star shape. 
     
     
         7 . The finned grinding disc device of  claim 1 , further comprising each set of grinding elements including a plurality of interior grinding elements and an end grinding element being positioned distally relative to said hub. 
     
     
         8 . The finned grinding disc device of  claim 7 , further comprising said end grinding element of each set of grinding elements being larger than each of said interior grinding elements of each set of grinding elements. 
     
     
         9 . The finned grinding disc device of  claim 8 , further comprising each interior grinding element of each set of grinding elements being consistent in size to each other interior grinding element. 
     
     
         10 . The finned grinding disc device of  claim 1 , further comprising said trailing edge of each of said fins being straight and positioned to extend radially relative to said hub. 
     
     
         11 . The finned grinding disc device of  claim 1 , further comprising said leading edge of each of said fins being convexly arcuate extending away from said hub. 
     
     
         12 . The finned grinding disc device of  claim 1 , further comprising each of said grinding elements of each set of grinding elements being inset from said leading edge of said associated one of said fins. 
     
     
         13 . The finned grinding disc device of  claim 1 , further comprising said plurality of fins comprising between four and nine fins extending around said peripheral edge of said hub. 
     
     
         14 . The finned grinding disc device of  claim 1 , further comprising:
 said hub having a central connection section and an extension section extending from said central connection section to said peripheral edge of said hub, said extension section being curved wherein said hub is concave extending from said central connection section to said peripheral edge of said hub; and   a plurality of apertures extending through said extension section of said hub, said apertures being arranged radially around said connection hole.   
     
     
         15 . The finned grinding disc device of  claim 1 , further comprising said connection hole being threaded. 
     
     
         16 . The finned grinding disc device of  claim 7 , further comprising said plurality of interior grinding elements being between 3 and 7 interior grinding elements. 
     
     
         17 . A finned grinding disc device comprising:
 a hub, said hub having a connection hole wherein said hub is configured for attachment to a grinder, said hub having a central connection section and an extension section extending from said central connection section to said peripheral edge of said hub, said extension section being curved wherein said hub is concave extending from said central connection section to said peripheral edge of said hub;   a plurality of apertures extending through said extension section of said hub, said apertures being arranged radially around said connection hole;   a peripheral flange coupled to and extending outwardly from a peripheral edge of said hub, said peripheral flange being shaped to define a plurality of fins extending from and around said peripheral edge of said hub, each of said fins having a leading edge and a trailing edge, said leading edge of each of said fins being convexly arcuate extending away from said hub, said trailing edge of each of said fins being straight and positioned to extend radially relative to said hub, said peripheral flange having a planar grinding surface; and   a plurality of grinding elements, each of said grinding elements having a polygonal shape, said polygonal shape being a star shape, said plurality of grinding elements being arranged into sets of grinding elements, each set of grinding elements being positioned on an associated one of said fins along said leading edge of said associated one of said fins, each of said grinding elements of each set of grinding elements being inset from said leading edge of said associated one of said fins, each of said grinding elements having a plurality of planar facets facing said leading edge of said associated one of said fins, each of said planar facets extending perpendicularly from said planar grinding surface of said peripheral flange, each set of grinding elements including a plurality of interior grinding elements and an end grinding element being positioned distally relative to said hub, said end grinding element of each set of grinding elements being larger than each of said interior grinding elements of each set of grinding elements, each interior grinding element of each set of grinding elements being consistent in size to each other interior grinding element.   
     
     
         18 . The finned grinding disc device of  claim 17 , further comprising said star shape being a five pointed star shape. 
     
     
         19 . The finned grinding disc device of  claim 17 , further comprising said plurality of fins comprising between four and nine fins extending around said peripheral edge of said hub. 
     
     
         20 . The finned grinding disc device of  claim 17 , further comprising said plurality of interior grinding elements being between  3  and  7  interior grinding elements.