Tamper indication device
First Claim
1. A tamper indicating device for securing an item to be protected, comprising:
- a multi-layer strip having an upper layer of at least partially transparent material, an indicia-forming layer, and a lower, adhesive layer for securing the strip to an item to be protected;
the upper layer including an imprintable signature area for receiving personal indicia and a non-imprintable area outside said signature area; and
the indicia-forming layer comprising means for changing the appearance of said non-imprintable area of the strip irreversibly on lifting of the strip from a protected item to which it has previously been adhered.
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Accused Products
Abstract
A tamper indicating, multi-layer strip has an upper layer of translucent or transparent material, a tamper pattern-forming layer beneath the upper layer, and a lower, adhesive layer for securing the strip to an item to be protected. A layer of imprintable material which is of area less than that of the upper layer covers part of the upper surface of the upper layer to form a signature-receiving area. The tamper pattern-forming layer is designed to be activated to reveal a tamper pattern through the upper layer when the strip is peeled away from an item to which it has been adhered. A signature is applied to the imprintable material layer prior to application of the strip to an item to be protected, making unauthorized duplication difficult, if not impossible.
51 Citations
12 Claims
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1. A tamper indicating device for securing an item to be protected, comprising:
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a multi-layer strip having an upper layer of at least partially transparent material, an indicia-forming layer, and a lower, adhesive layer for securing the strip to an item to be protected; the upper layer including an imprintable signature area for receiving personal indicia and a non-imprintable area outside said signature area; and the indicia-forming layer comprising means for changing the appearance of said non-imprintable area of the strip irreversibly on lifting of the strip from a protected item to which it has previously been adhered. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tamper indicating device for securing an item to be protected against unauthorized tampering without the user'"'"'s knowledge, the device comprising:
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a multi-layer strip having a first layer of at least partially transparent material, the first layer having an upper surface and a lower surface, a second layer of adhesive material for securing the strip to an item to be protected, and a tamper pattern-forming layer between the lower surface of the first layer and the second layer, whereby after the strip is adhered to an item, the tamper pattern is activated on removal of the strip from the item and is visible through the upper layer after activation; and the upper layer having at least one signature area for receiving a signature imprint, the signature area extending over at least part of the upper layer. - View Dependent Claims (12)
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Specification