Method and device for manufacturing information carriers

Details Method and device for manufacturing information carriers Method and device for manufacturing information carriers

1978-02-23

1980-11-11

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Deforming the surface only

264571, 425385, 425389, B29C 1700

Patent

active

042332613

ABSTRACT:
Method of and a device for manufacturing information carriers form a thermoplastic material, where a thin information carrying die is heated by bringing it into contact with a relatively thick, heated surface and is subsequently separated from the heated surface and pneumatically pressed against the thermoplastic material by a layer of air that thermally isolates the die from the heated surface so that the die may rapidly cool.

REFERENCES:
patent: 2536316 (1951-01-01), Schwarz et al.
patent: 2970345 (1961-02-01), Wangner, Jr.
patent: 3157723 (1964-11-01), Hockberg
patent: 3535740 (1970-10-01), Frowde

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