Case for a disc

Abstract

A case can hold a disc having a central hole. The case has a pair of wings, each having a surface and at least one sidewall. The wings are hinged together to swing (b) apart to articulate and cant the sidewalls, and (a) together to allow a meshing of the sidewalls. One of the wings includes a support for holding the disc.

1 . A case for a disc having a central hole, comprising: 
 a pair of wings each having a surface and at least one sidewall, said wings being hinged together to swing (b) apart to articulate and cant the sidewalls, and (a) together to allow a meshing of the sidewalls, one of said wings including a support for holding said disc.    
     
     
         2 . A case according to  claim 1  wherein the sidewall of each of the wings is peripheral and transverse to the surface of its associated one of said wings.  
     
     
         3 . A case according to  claim 1  wherein the sidewall of each of the wings has a height that varies along its length.  
     
     
         4 . A case according to  claim 1  wherein the sidewall of each of the wings has a height that varies periodically along its length.  
     
     
         5 . A case according to  claim 1  wherein the sidewall of at least one of the wings has a notch.  
     
     
         6 . A case according to  claim 1  wherein the sidewall of one of the wings has at least one notch and the sidewall of the other one of the wings has at least one tooth complementary to said notch.  
     
     
         7 . A case according to  claim 6  wherein the at least one tooth is centrally located along its sidewall.  
     
     
         8 . A case according to  claim 6  wherein the at least one tooth has a peak and a pair of spaced edges on either side of said peak, at least one of said spaced edges being slanted to avoid interference when meshing with the at least one notch.  
     
     
         9 . A case according to  claim 8  wherein the slanted one of the spaced edges makes an angle of at least 10° with respect to the height of the tooth.  
     
     
         10 . A case according to  claim 8  wherein the slanted one of the spaced edges makes an angle of about 45° with respect to the height of the tooth.  
     
     
         11 . A case according to  claim 8  wherein the tooth has a trapezoidal shape.  
     
     
         12 . A case according to  claim 1  wherein the sidewall of each of the wings has at least one notch and at least one tooth, the notch and the tooth of the side wall of each wing being complementary to mesh with each other.  
     
     
         13 . A case according to  claim 1  wherein each of the wings has a rectangular outline with a hinged edge, an opposite edge opposite said hinged edge, and two adjacent edges.  
     
     
         14 . A case according to  claim 13  wherein the sidewall of each wing comprises two separate segments located along the two adjacent edges of its wing.  
     
     
         15 . A case according to  claim 1  wherein said wings are flexible.  
     
     
         16 . A case according to  claim 15  comprising a wrapper encompassing said wings to hold them closed.  
     
     
         17 . A case according to  claim 1  wherein said wings are hinged together with a live hinge.  
     
     
         18 . A case according to  claim 7  wherein said support comprises a hub sized to engage the central hole of said disc.  
     
     
         19 . A case according to  claim 18  wherein said at least one notch is located on that one of the wings having the support, said wings being joined along a hinge axis, said hub and said at least one notch having about the same radial spacing from the hinge axis.  
     
     
         20 . A case according to  claim 1  wherein said at least one notch having a depth less than the height of said hub.