Title: Business form with electrically conductive layer

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Claims: We claim:

1. A business document comprising in combination:

a first layer;

a second layer overlying said first layer, said first and second layers having substantially different electrical conductivity and color; at least one of said layers is opaque to light;

one of said layers being electrically vaporizable upon exposure to an electrical discharge; and

a third layer put down over a portion of said second layer organizing said second layer into segments.

2. The article claimed in claim 2 wherein:

a fourth layer overlays at least a portion of said second layer wherein said fourth layer has a color different from said second and third layers.

3. The article claimed in claim 1 wherein:

one of said first and second layers contains a coloring material and the other of said layers is formed of an electrically conductive substance.

4. The article claimed in claim 1 wherein:

said second layer is substantially impervious to fluids which wet surfaces.

5. The article claimed in claim 1 wherein:

one of said first or second layers is electrically vaporizable by a voltage of about 50 volts lasting for about 0.0004 of a second.

6. The article claimed in claim 1 wherein:

the absence of a portion of said second layer changes the electrical characteristics of the article in the region of the absent portion.

7. The article claimed in claim 1 wherein:

a reader writer is adapted to electrically read and write onto said article by removing a portion of said second layer and by sensing the absence of said layer.

8. The article claimed in claim 1 wherein:

said first layer comprises a plurality of colors.

9. The article claimed in claim 1 including further:

a base layer underlying said first and second layers.

10. The article claimed in claim 9 wherein:

said base layer is a paper substance;

said first layer is an ink substance; and,

said second layer is an aluminum material.

11. The article claimed in claim 9 wherein:

said base layer is a plastic.

12. The article claimed in claim 10 wherein:

a fourth layer of ink of contrasting color overlays said second layer; said fourth layer having properties and a thickness such that the shiny surface of the aluminum layer and the first layer is visible through said fourth layer of ink and the fluid absorbing properties of said second layer are not altered.

13. The article claimed in claim 10 wherein:

said document is divided into at least two severable segments in which at least one of said segments has a memory part for providing the memory input to a computer.

14. The article claimed in claim 13 wherein:

said memory part has at least one portion of said second layer removed in a manner corresponding to a machine readable code.

15. The article claimed in claim 14 wherein said

memory part is created in at least two of said severable segments.

16. The article claimed in claim 13 wherein:

at least one of said severable segments has at least one mark thereon for enabling the position of said memory part to be sensed by a computer terminal device.

17. The article claimed in claim 13 wherein:

at least one of said severable segments has a plurality of timing marks formed thereon.

18. A business form comprising at least first and second layers in which said first layer is electrically non-conductive and said second layer is electrically conductive;

said layers being of contrasting colors;

said second layer being electrically vaporizable upon exposure to an electrical discharge;

the surface of said form being organized into a plurality of segments by a third layer.

19. The article claimed in claim 18 wherein:

said form is further organized into at least first and second separable parts in which said first part has a memory part containing a machine readable representation of the information contained in the second part of the form.

20. The article claimed in claim 18 wherein:

a fourth layer overlying said second layer having properties and thickness to leave unaltered the appearance and liquid absorption properties of said second layer;

said fourth color contrasting to the color of said first and second layers.

21. The article claimed in claim 18 wherein:

said first and second layers are deposited on a paper base and said second layer is formed of a thin coating of metal having a surface not absorptive to liquids which wet surfaces.

22. The article claimed in claim 21 wherein:

said first layer is formed of ink and said second layer is aluminum.

23. The article claimed in claim 22 wherein:

a layer of liquid absorbing material is adhered to said second layer to enable it to accept inks which wet the surface they touch.

24. The article claimed in claim 19 wherein:

a plurality of marks on said memory part enables a computer terminal device to sense the position of said memory part.

25. The article claimed in claim 19 wherein:

a plurality of marks on the second part of said article enables a computer terminal device to sense the position of said second part.

26. The article claimed in claim 19 wherein:

a plurality of timing marks are formed on said memory part to enable a computer terminal device to read said memory part.

27. The article claimed in claim 19 wherein:

a plurality of timing marks are formed on said second part to enable a computer terminal device to read said memory part.

28. The article claimed in claim 19 wherein:

both said first and second parts have memory parts containing machine readable information.

29. The article claimed in claim 28 wherein:

said first and second parts have horizontal, vertical and timing synchronization marks formed thereon.

30. The article claimed in claim 1 wherein:

said first layer is formed of a plastic.

31. The article claimed in claim 1 wherein:

said first layer is formed of paper.

Other info:

Inventors: Bell, Jr., Vincent G. (Berwyn, PA, US)
Burke, Thomas P. (Harleysville, PA, US)
Margolin, George D. (Newport Beach, CA, US)
Vurpillat, Victor V. (Laguna Niguel, CA, US)

Application Number: 879113
Filing Date: 1978-02-21
Publication_date: 1980-10-28
Assignee: Centurion Data Corporation (King of Prussia, PA)
Primary Class(es): 283/84 283/83
Other Classes:
US Patent Ref:

1671418	May, 1928	Frankel	283/8.
2536371	Jan, 1951	Hutchison	282/23.
3075791	Jan, 1963	Wolf	282/1.
3405256	Oct, 1968	Weber	235/488.
3672703	Jun, 1972	Jay	282/25.
3831119	Aug, 1974	Ambrosio	235/488.
3902262	Sep, 1975	Colegrove et al.	40/2.
3986001	Oct, 1976	Saito	235/61.

Other Refs:
Primary Examiner: McQuade, John
Assistant Examiner:
Attorney: Woronoff; David S.