Stackable storage device

Abstract

The present invention broadly comprises a stackable storage tray that includes a bottom having an upper surface and a lower surface and an edge extending around the perimeter of the bottom. The tray also possesses a hollow stacking post functionally attached to the bottom in a position that is offset from the center of the bottom as well as a receiving hole defined by the lower surface and extending into the hollow stacking post. The tray may be stacked to form a stacked storage device in which individual trays are rotatable by inserting the hollow stacking post of a lower stacked tray into a receiving hole of an upper tray. In preferred embodiments, the stacking post and receiving hole are tapered.

1 . A stackable storage tray comprising:
 a bottom, said bottom including an upper surface and a lower surface;   an edge extending around the perimeter of said bottom;   a center point on the bottom;   a hollow stacking post functionally attached to said bottom in a position offset from said center point; and,   a receiving hole defined by said lower surface and extending into said hollow stacking post.   
   
   
       2 . The stackable tray as recited in  claim 1  wherein said hollow stacking post is tapered. 
   
   
       3 . The stackable tray as recited in  claim 1  wherein said receiving hole is tapered. 
   
   
       4 . The stackable tray as recited in  claim 1  wherein said hollow stacking post is integral with said bottom. 
   
   
       5 . The stackable tray as recited in  claim 1  wherein said hollow stacking post is threadably attached to said bottom. 
   
   
       6 . The stackable tray as recited in  claim 1  wherein said hollow stacking post is fixedly attached to said bottom over said receiving hole to form a continuous cavity. 
   
   
       7 . The stackable tray as recited in  claim 1  wherein said edge is formed into a lip. 
   
   
       8 . The stackable tray as recited in  claim 1  wherein said edge is formed into a wall. 
   
   
       9 . A stacked storage device comprising a plurality of trays, each of said trays comprising:
 a bottom, said bottom including an upper surface and a lower surface;   an edge extending around the perimeter of said bottom;   a center point on the bottom;   a hollow stacking post offset from said center point; and,   a receiving hole defined by said lower surface and extending into said hollow stacking post;   wherein said trays are rotatably supported in a stacked position by inserting said hollow stacking post of a lower stacked tray into a receiving hole of an upper stacked tray.   
   
   
       10 . The stacked storage device as recited in  claim 9  wherein at least one of said hollow stacking posts is tapered. 
   
   
       11 . The stacked storage device as recited in  claim 9  wherein at least one of said receiving holes is tapered. 
   
   
       12 . The stacked storage device as recited in  claim 9  wherein each of said hollow stacking posts is integral with said bottom. 
   
   
       13 . The stacked storage device as recited in  claim 9  wherein each of said hollow stacking posts is threadably attached to said bottom. 
   
   
       14 . The stacked storage device as recited in  claim 9  wherein each of said hollow stacking posts is attached to said bottom over said receiving hole to form a continuous cavity. 
   
   
       15 . The stacked storage device as recited in  claim 9  wherein at least one of said edges is formed into a lip. 
   
   
       16 . The stacked storage device as recited in  claim 9  wherein at least one of said edges is formed into a wall. 
   
   
       17 . The stacked storage device as recited in  claim 9  wherein said receiving hole of at least one of said upper trays rotates around said stacking post of said lower tray.