Ultrasonically Welded Diskette Cartridge
Original Publication Date: 1984-Feb-01
Included in the Prior Art Database: 2005-Feb-02
In ultrasonically welding the two plastic halves of a magnetic recording diskette jacket, the energy concentrating tabs, which are carried by one half, are surrounded by a fence-like wall, carried by the other half, such that debris which is generated by the welding operation is confined to the fenced-in area, and the debris therefore does not find its way into the diskette cavity wherein the floppy disk is confined. Fig. 1 is a top view of such a diskette, having top half 10 and bottom half 11, and showing a portion of the floppy magnetic recording disk 12 which is loosely contained wherein the jacket is formed by the two plastic halves. Fig. 2 shows the internal view of bottom half 11. This half contains four arcuate internal walls 13 which extend to meet the wall 14 which encircles the entire outer periphery of the diskette.