Browse Prior Art Database

Shield Carrier for Encoded Badges

IP.com Disclosure Number: IPCOM000084196D
Original Publication Date: 1975-Oct-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Waters, CT: AUTHOR

Abstract

It has become common practice to include a magnetic stripe on credit cards, various types of badges, and tickets. These magnetic stripes have indicia recorded thereon which can be read by various types of terminals.

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This is the abbreviated version, containing approximately 100% of the total text.

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Shield Carrier for Encoded Badges

It has become common practice to include a magnetic stripe on credit cards, various types of badges, and tickets. These magnetic stripes have indicia recorded thereon which can be read by various types of terminals.

A problem has been encountered in that the magnetic information on such items can be erased by stray magnetic fields, such as those surrounding large transformers or other electrical equipment. This is particularly true with respect to magnetically encoded badges. Experience shows that badges are frequently erased when being carried in pockets or when stored.

Shown is a carrier for items which include magnetically encoded information. This carrier includes a shield that prevents them from being erased.

This card carrier has two sides which fold together. Each side has an opaque plastic cover 10, a clear plastic innerlayer 11, a 0.008 inch layer of steel shim stock, and a 0.06 inch layer of cardboard which acts as a spacer. The cutout tabs 15 provide the ability to insert badges that have a protruding clip.

The steel shim stock serves as a barrier to any stray magnetic fields, thereby preventing information encoded on magnetic stripes from being erased. Naturally, other dimensions could be used as long as sufficient shielding is provided.

In an alternative arrangement, the carrier could have one pocket with material embedded on both sides thereof.

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