Process for the manufacture of a jacket for a flexible disk for

Details Process for the manufacture of a jacket for a flexible disk for Process for the manufacture of a jacket for a flexible disk for

1979-08-15

1982-01-12

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156299, 156443, 156556, 206444, 206313, 493231, 493243, 493247, B32B 3100, B65C 904, B31F 500, B65D 8500

Patent

active

043103715

ABSTRACT:
A process for the manufacture of a jacket, comprising two cover sheets joined to one another, for a flexible disk for data recording, the cover sheets and the nonwoven lining being punched out in the form of blanks including the functional apertures, and the cover sheet blank and the nonwoven blank being joined to one another and then folded to form the jacket, wherein the sheet material for the cover sheets is transferred from a magazine, with the aid of mechanical, air-operated grippers provided with positioning means, to an assembly surface and is there provided, the sheet of nonwoven material from a second magazine is tacked onto the cover sheet material by spot-welding and is then joined thereto over the entire surface by thermal welding, thereafter the cover sheet material thus provided with the nonwoven covering is transferred to a holder frame and then conveyed, with this frame, to a punching device where it is punched out to form a blank provided with the functional apertures, subsequently the blank is removed from the holder frame by means of mechanical, air-operated grippers and is placed in the correct position on a carrier and folded to form the jacket, and at the same time the folds are stabilized by heating and subsequently cooling the material in the region of the folds, and the surface which come into contact on folding are welded to one another in the marginal portions of the jacket.

REFERENCES:
patent: 2056903 (1936-10-01), Mayer
patent: 3317038 (1967-05-01), Bade et al.
patent: 3354568 (1967-11-01), Koschier
patent: 3668658 (1972-06-01), Flores et al.
patent: 3989579 (1976-11-01), Sheldon

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