Recreational Disk with Blade Members

Abstract

Recreational disks with blade members and airfoils are provided herein. An exemplary recreational disk includes a disk having an upper surface and a lower surface, a first plurality of radially arranged blades rotatably supported on any of the upper surface and the lower surface of the disk, the first plurality of radially arranged blades rotating during flight so as to change at least one aerodynamic behavior of the disk, compared to the disk without the first plurality of radially arranged blades, as well as a motor that rotates the first plurality of radially arranged blades when the recreational disk is thrown through the air.

1 . A recreational disk, comprising:
 a disk body comprising an upper surface and a lower surface;   a first plurality of radially arranged blades rotatably supported on the lower surface of the disk body, the first plurality of radially arranged blades rotating during flight so as to change at least one aerodynamic behavior of the disk body, compared to the disk body without the first plurality of radially arranged blades;   a second plurality of radially arranged blades rotatably supported on the upper surface of the disk body, the second plurality of radially arranged blades being located on an opposing side of the disk body relative to the first plurality of radially arranged blades; and   a motor that rotates the first plurality of radially arranged blades when the recreational disk is thrown through the air.   
     
     
         2 . The recreational disk according to  claim 1 , further comprising a switch that allows the motor to be turned on and off through wireless signals. 
     
     
         3 . The recreational disk according to  claim 1 , wherein the motor is engaged to rotate the blades when the recreational disk is thrown through the air and the air initially turns the first plurality of radially arranged blades. 
     
     
         4 . The recreational disk according to  claim 1 , wherein the first plurality of radially arranged blades are mounted to a shaft that is rotatably supported at a central axis of the disk. 
     
     
         5 . The recreational disk according to  claim 4 , wherein the second plurality of radially arranged blades are mounted on the shaft on the opposing side of the disk body relative to the first plurality of radially arranged blades. 
     
     
         6 . The recreational disk according to  claim 1 , wherein the disk comprises a skirt that extends downwardly from an outer peripheral edge of the disk. 
     
     
         7 . The recreational disk according to  claim 6 , wherein the skirt comprises a plurality of air vents, further wherein during flight, air passes through the plurality of air vents to rotate the first plurality of radially arranged blades, the first plurality of radially arranged blades being disposed below the lower surface of the disk. 
     
     
         8 . The recreational disk according to  claim 1 , wherein the disk comprises a central aperture that is defined by an inner sidewall, further wherein the first plurality of radially arranged blades extend from the inner sidewall into the central aperture. 
     
     
         9 . The recreational disk according to  claim 8 , wherein each of the first plurality of radially arranged blades comprises a blade body, further wherein a terminal end of blade body has a length that is greater than a length of an opposing end of the blade body that couples with the inner sidewall. 
     
     
         10 . The recreational disk according to  claim 9 , wherein a portion of the blade body extends above the upper surface of the disk and below the lower surface of the disk. 
     
     
         11 . The recreational disk according to  claim 10 , wherein the blade body of the first plurality of radially arranged blades are any of cambered and twisted. 
     
     
         12 . The recreational disk according to  claim 1 , further comprising an annular ring mounted to the disk and in alignment with a central aperture, wherein the first plurality of radially arranged blades are disposed within the annular ring. 
     
     
         13 . (canceled) 
     
     
         14 . The recreational disk according to  claim 1 , wherein the first plurality of radially arranged blades are mounted on a first rotatable shaft and the second plurality of radially arranged blades are mounted on a second rotatable shaft. 
     
     
         15 . The recreational disk according to  claim 1 , wherein the first plurality of radially arranged blades change the at least one aerodynamic behavior of the disk by producing lift in a direction that is perpendicular to a flight path that is coplanar with the disk. 
     
     
         16 . A recreational disk, comprising:
 a disk comprising an upper surface, a lower surface, and an outer rim formed by a protrusion that extends circumferentially around an outer edge of the disk; and   an airfoil assembly comprising:
 a shaft that is rotatably supported in a center of the disk; and
 a first set of airfoils that are directly coupled to spokes that extend perpendicularly to the shaft, the first set of airfoils protruding downward from the lower surface of the disk, wherein rotation of the shaft causes the airfoils to rotate so as to produce lift when the disk is thrown through the air. 
 
   
     
     
         17 . The recreational disk according to  claim 16 , further comprising a motor that rotates the shaft. 
     
     
         18 . The recreational disk according to  claim 17 , wherein the motor is controlled by an accelerometer that senses acceleration of the disk, wherein if the acceleration meets or exceeds an acceleration threshold the motor is activated to rotate the shaft. 
     
     
         19 . The recreational disk according to  claim 16 , wherein the first set of airfoils are symmetrical and have a cambered profile. 
     
     
         20 . The recreational disk according to  claim 16 , wherein the outer rim comprises openings that allow air to enter below the lower surface of the disk.