Hand-held exercise weight

Abstract

An improved hand-held barbell type exercise weight that reduces muscle fatigue consists of a circular disk that has a vertical axis perpendicular to the base of the disk, a horizontal axis perpendicular to the vertical axis and a lateral axis perpendicular to both the vertical and horizontal axes and intersecting the axes at the approximate centroid of the circular disk. The disk has an axially extending cylindrical void extending axially along the vertical axis and through the disk forming a hollow circular disk where the void is symmetrical to the plane of the vertical axis. A cylindrically shaped grip bar having a central axis that is co-axial with the lateral axis extends laterally across the void and through the centroid of the disk.

1 . An improved hand-held exercise weight comprising: 
 (a) a disk having a vertical axis and a base where said vertical axis is perpendicular to the plane of said base and intersects said base at its geometrical center, said disk having an axially extending void therethrough where said void is bounded by said disk forming a boundary surface such that said boundary surface is symmetrical to a plane containing said vertical axes, said disk further having a horizontal axis perpendicular to said vertical axis and a lateral axis perpendicular to both said vertical and horizontal axes, and where said disk has a centroid located approximately at the intersection of said axes.    (b) a grip bar having a central axis carried by said disk where said central axis is substantially co-axial with said lateral axis and extends laterally through said void.    
   
   
       2 . The improved hand held exercise weight recited in  claim 1  where said grip bar is cylindrically shaped.  
   
   
       3 . The improved hand held exercise weight recited in  claim 1  where said boundary surface is a cylindrical surface.  
   
   
       4 . The improved hand held exercise weight recited in  claim 1  where said boundary surface is a regular polygon surface.  
   
   
       5 . An improved hand-held exercise weight comprising: 
 (a) a right prism having a regular polygon base, and a vertical axis perpendicular to the plane of said regular polygon base, said vertical axis intersecting said plane at the geometrical center of said regular polygon base, where said right prism body has an axially extending void therethrough, and where said void is bounded by said right prism body forming a boundary surface such that the boundary surface of said void is symmetrical to a plane containing said vertical axis, said right prism body further having a horizontal axis perpendicular to said vertical axis and said horizontal axis and where said right prism body has a centroid at the intersection of said axes;    (b) a grip bar having a central axis carried by said right prism body where said central axis is substantially co-axial with said lateral axis and extends through said centroid, and where said grip bar extends axially through said void.    
   
   
       6 . The improved hand held exercise weight recited in  claim 5  where said grip bar is cylindrically shaped.  
   
   
       7 . The improved hand held exercise weight recited in  claim 5  where said boundary surface is a cylindrical surface.  
   
   
       8 . The improved hand held exercise weight recited in  claim 5  where said regular polygon base is a polgon having a sufficient number of sides to approximate a circle.