Browse Prior Art Database

Hot Wire Magnetic Inscription Stamp

IP.com Disclosure Number: IPCOM000090711D
Original Publication Date: 1969-Jun-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Hagopian, JJ: AUTHOR

Abstract

Discrete magnetic bits in complementary data coding patterns are applied to plastic credit card 1. Such is effected by transferring and bonding magnetic material 2 to card 1 by heat and pressure applied to transfer tape 3. The transfer device comprises a plurality of closely spaced electrically resistive ribbons 5 mounted on edge, arranged in character groups and held in molding block 4. Each ribbon 5 contains a groove 6 dividing the ribbon into portions 5A and 5B. Portion 5A of a selected ribbon is heated by passing an electrical current through the applicable conductors 7 and 9. Portion 5B of the selected ribbon is heated by passing an electrical current through applicable conductors 8 and 9.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Hot Wire Magnetic Inscription Stamp

Discrete magnetic bits in complementary data coding patterns are applied to plastic credit card 1. Such is effected by transferring and bonding magnetic material 2 to card 1 by heat and pressure applied to transfer tape 3. The transfer device comprises a plurality of closely spaced electrically resistive ribbons 5 mounted on edge, arranged in character groups and held in molding block 4. Each ribbon 5 contains a groove 6 dividing the ribbon into portions 5A and 5B. Portion 5A of a selected ribbon is heated by passing an electrical current through the applicable conductors 7 and 9. Portion 5B of the selected ribbon is heated by passing an electrical current through applicable conductors 8 and 9. With the appropriate portion 5A or 5B heated, the inscription stamp is moved in the direction of arrow 10 to apply pressure against tape 3 and card 1. With each W- shaped element, switching of current into the right portion 8, 5b, and 9 or the left half 7, 5a, and 9 results in imprinting of bits on one or the other of two parallel magnetic tracks on card 1.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]