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US 4,568,994 AGranted
Warp resistant-dimensionally stable jacket for magnetic recording disk
AssigneeMemron, Inc.
InventorGregory R. Lynch
Life of this patent
Estimating the term…
Abstract
A floppy disk jacket assembly including the jacket and floppy disk of a magnetic recording assembly in which the jacket if formed from a complex ester formed by polymerization or condensation and commonly known as polyester. The jacket is formed of two identical flat sheets of polyester juxtaposed so that their peripheral edges coincide. The peripheral edges constitute a homogeneous mass of the polyester to form a sealed pocket.
Claims16
A jacket assembly for a floppy disk comprising:
- (a) a jacket formed substantially from polyester material and fuse-sealed around its peripheral edges;
- and
- (b) a magnetizable floppy disk rotatably disposed within said fuse-sealed jacket,
- whereby said peripheral edges of the jacket are fused together in a manner to eliminate overlapping of one edge portion of the jacket by another edge portion of the jacket.
1 more element
A jacket for a floppy disk comprising:
- (a) two substantially identical apertured sheets of polyester material superposed one above the other in spaced parallel relation so that their corresponding edges and apertures coincide,
- (b) said coinciding corresponding edges being fuse-sealed to one another,
- whereby said peripheral edges of the jacket are fused together in a manner to eliminate overlapping of one edge portion of the jacket by another edge portion of the jacket.
Dependencies are inferred from the claim text.