RECORD MEDIUM WITH VALIDATING AND CANCELLING FEATURE AND METHOD

• US 3,793,600 A
• Filed: 03/16/1971
• Issued: 02/19/1974
• Est. Priority Date: 03/16/1971
• Status: Expired due to Term

• Current Assignee: Gregory Grosbard
• Original Assignee: Gregory Grosbard
• Inventors: Grosbard, Gregory
• Primary Examiner(s): Wilbur, Maynard R.
• Assistant Examiner(s): Gnuse, Robert F.
• Application Number:
  US05/124,869
• Time in Patent Office: 1,071 Days
• Field of Search: 235/61.12,61.11E,61.11A
• US Class Current: 235/491
• CPC Class Codes: G06K 19/067 Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
• CPC Class Codes: G07F 7/086 by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer for security documents G07D7/00; for the reading of record-carriers in general G06K7/00; for the design of coded credit-cards G06K19/10

Abstract

A data processing card on which information is recorded magnetically, by punch hole coding, printing, color coding and by other means. By passing current through fusible strips embedded in the card adjacent one edge thereof, visible characters are formed to signify the card has been cancelled. Cancelling is effected after all desired data processing operations have been performed on a validated card.

Claims

1. A data processing record medium comprising a relatively thin body having peripheral edges and substantially parallel external surfaces, said body being made of a binder material within which solid particles are embedded spaced from at least one of said edges, electrically fusible means embedded within the body closely adjacent said one of the edges and exposed through another of the edges, and character forming means embedded within the body in conductive relation to the fusible means for forming a visible pattern in response to fusing of the fusible means.

2. The record medium defined in claim 1 wherein said particles are magnetically permeable and magnetically orientated in perpendicular directions.

3. The record medium defined in claim 2 including a luminous background layer embedded within the body spaced from said one of the edges, said binder material being light transmissive, and color strands positioned on said background layer in an internally coded pattern.

4. The record medium defined in claim 3 wherein said particles also include a fleck material within at least one discrete zone having a radiation reflective property with respect to non-visible radiation.

5. The record medium defined in claim 4 wherein said character forming means is in the form of metallic powder.

6. The record medium defined in claim 5 wherein light stimulated emissive material and optical fibers are embedded in the body.

7. The record medium defined in claim 1 wherein said character forming means is in the form of metallic powder.

8. An information bearing document comprising a relatively thin card-like body and radiation stimulated means embedded therein, including a coded mixture of phosphors quenchable and unquenchable by infra-red radiation.

9. The document defined in claim 8 including electrically fusible means embedded within the body, and character forming means embedded within the body in conductive relation to the fusible means for forming a visible pattern in response to fusing of the fusible means.

10. The combination of claim 8 wherein said quenchable and unquenchable phosphors are excitable by ultra-violet radiation.