Storage container for magnetic tape cassettes

A storage container for magnetic tape cassettes of the type having an enclosed case with essentially parallel top and bottom surfaces and two sets of essentially parallel side surfaces each set essentially mutually perpendicular to the other set, one of said side surfaces of one of said sets including an opening exposing the surface of the magnetic tape and two capstan locating holes passing through said cassette from said top surface to said bottom surface proximal to said side surface wherein said opening is located which comprises:

• a support base;
• at least one cassette holding sleeve fixedly mounted to said support base;
• said cassette holding sleeve including two upstanding walls, each independently fixedly attached to said support base essentially perpendicular to said support base and spaced essentially parallel to one another at a distance slightly greater than the distance between the side surfaces of one of said sets of said side surfaces of said cassette, a top wall located with respect to said support base at a distance slightly greater than the thickness of said cassette between said top and said bottom surfaces of said cassette, said top wall attaching to each of said upstanding walls so together said support base, said upstanding walls, and said top wall form said holding sleeve, said holding sleeve capable of containing between said top wall and said support base at least that portion of said cassette which includes the capstan locating holes;
• at least one protuberance means integrally formed with said top wall and projecting toward said support surface, said protuberance means positioned on said top wall to be located directly over one of said capstan locating holes when said cassette is located in said sleeve such that one of said sets of said side surfaces of said cassette are adjacent to said upstanding walls;
• at least that portion of said top wall wherein said protuberance means are located capable of being distorted in a direction away from said support base when said cassette is inserted into said sleeve and then returning to its undistorted position when said cassette is positioned between said top wall and said support surface in a position wherein said protuberance means is aligned over one of said capstan locating holes to locate at least a portion of said protuberance means in one of said capstan locating holes.