Apparatus for embossing alpha-numeric characters
Abstract
Abstract THE DISCLOSURE BROADLY RELATES TO METHODS AND APPARATUS FOR SERIALLY OPERATING UPON PLASTIC SHEETS TO PROVIDE SPRUE FREE, SOLID PLASTIC ALPHA-NUMERIC EMBOSSMENTS ADHERENT TO THE SHEETS, AS FOR EXAMPLE PLASTIC CREDIT CARDS. CARDS ARE SEQUENTIALLY TRANSPORTED TO ONE OR MORE EMBOSSMENT STATIONS WHEN RELATIVELY MOVABLE MULTIPLE DIES ARE AUTOMATICALLY SELECTED IN PREDETERMINED COMBINATIONS TO PRESENT PERIPHERAL RECESSES IN THE DIE MEMBERS TO THE CARDS AND INJECT HEATED PLASTIC THROUGH THE DIE MEMBERS ONTO THE CARDS TO FORM THE NUMERIC OF ALPHABETICAL EMBOSSMENTS WHICH ARE BONDED TO THE CARDS. THE EMBOSSED CARDS ARE THEN SEQUENTIALLY TRANSPORTED TO ANOTHER STATION WHERE THE EMBOSSMENTS ARE CUT TO SEVER SPRUES AND FORM IMPRINTING SURFACES WITH LESS DEFLECTION THAN CONVENTIONAL HOLLOW EMBOSSMENTS DURING DOCUMENT IMPRINTING.
Inventors
- 👤 Louis M Ballard
- 👤 Wayne M Beebe
- 👤 David C Kramer
- 👤 Waldo I Rogers
Bibliographic Details
Claims Analysis
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