Spoon skis and snowboards

Abstract

According to the invention, a ski is provided. The ski may be a longitudinal member having lengthwise edges, a convex base, and a first and second pair of undulations. Each lengthwise edge may have a sidecut portion, where the longitudinal member is thinner near a middle portion of the sidecut portion than at an end of the sidecut portion. The convex base, in an un-deformed state, may have lengthwise edges which are elevated compared to a bottom-most portion of the convex base. The first pair of undulations may be located at a first end of the sidecut portion, one undulation of the first pair per lengthwise edge. The second pair of undulations may be located at a second end of the sidecut portion, one undulation of the second pair per lengthwise edge. The undulations may be a downward depression of the base compared to proximate portions of the convex base.

1 . A ski, wherein the ski comprises:
 a longitudinal member having:
 lengthwise edges, wherein each lengthwise edge has a sidecut portion, where the longitudinal member is thinner near a middle portion of the sidecut portion than at an end of the sidecut portion; 
 a convex base, wherein in an un-deformed state, the lengthwise edges are elevated compared to a bottom-most portion of the convex base; 
 a first pair of undulations located at a first end of the sidecut portion, one undulation of the first pair per lengthwise edge; 
 a second pair of undulations located at a second end of the sidecut portion, one undulation of the second pair per lengthwise edge; and 
 wherein the undulations comprise a downward depression of the base compared to proximate portions of the convex base. 
   
     
     
         2 . The ski of  claim 1 , wherein the ski comprises a rocker profile ski. 
     
     
         3 . The ski of  claim 1 , wherein the ski comprises a non-rocker profile ski. 
     
     
         4 . The ski of  claim 1 , wherein the ski further comprises a third pair of undulations. 
     
     
         5 . The ski of  claim 4 , wherein the ski further comprises a fourth pair of undulations. 
     
     
         6 . The ski of  claim 4 , wherein the third pair of undulations is located at substantially the center of the sidecut section. 
     
     
         7 . The ski of  claim 1 , wherein a section of at least one of the first pair of undulations or the second pair of undulations is flat on its underside. 
     
     
         8 . The ski of  claim 1 , wherein a section of at least one of the first pair of undulations and/or the second pair of undulations is not flat on its underside. 
     
     
         9 . The ski of  claim 1 , wherein there are a different number of undulations on one edge of the ski than on the other edge. 
     
     
         10 . A ski, wherein the ski comprises:
 a longitudinal member having:
 lengthwise edges, wherein each lengthwise edge has a straight sidecut portion or a reverse sidecut portion, where the reverse sidecut is thicker near a middle portion of the reverse sidecut than at an end of the reverse sidecut; 
 a convex base, wherein in an un-deformed state, the lengthwise edges are elevated compared to a bottom-most portion of the convex base; 
 a first pair of undulations located at a first end of the sidecut portion, one undulation of the first pair per lengthwise edge; 
 a second pair of undulations located at a second end of the sidecut portion, one undulation of the second pair per lengthwise edge; and 
   wherein the undulations comprise a downward depression of the base compared to proximate portions of the convex base.   
     
     
         11 . The ski of  claim 10 , wherein the ski comprises a rocker profile ski or a cambered profile ski. 
     
     
         12 . A snowboard, wherein the snowboard comprises:
 a longitudinal member having:
 lengthwise edges, wherein each lengthwise edge has a sidecut portion, where the longitudinal member is thinner near a middle portion of the sidecut portion than at an end of the sidecut portion; 
 a convex base, wherein in an un-deformed state, the lengthwise edges are elevated compared to a bottom-most portion of the convex base; 
 a first pair of undulations located at a first end of the sidecut portion, one undulation of the first pair per lengthwise edge; 
 a second pair of undulations located at a second end of the sidecut portion, one undulation of the second pair per lengthwise edge; and 
   wherein the undulations comprise a downward depression of the base compared to proximate portions of the convex base.   
     
     
         13 . The snowboard of  claim 12 , wherein the snowboard comprises a rocker profile snowboard. 
     
     
         14 . The snowboard of  claim 12 , wherein the snowboard comprises a non-rocker profile snowboard. 
     
     
         15 . The snowboard of  claim 12 , wherein the snowboard further comprises a third pair of undulations. 
     
     
         16 . The snowboard of  claim 15 , wherein the snowboard further comprises a fourth pair of undulations. 
     
     
         17 . The snowboard of  claim 15 , wherein the third pair of undulations is located at substantially the center of the sidecut section. 
     
     
         18 . The snowboard of  claim 12 , wherein a section of at least one of the first pair of undulations or the second pair of undulations is flat on its underside. 
     
     
         19 . The snowboard of  claim 12 , wherein a section of at least one of the first pair of undulations or the second pair of undulations is not flat on its underside. 
     
     
         20 . The snowboard of  claim 12 , wherein instead of paired undulations, there are a different number of undulations on one edge of the snowboard than on the other edge.