Dynamic security device
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United States of America Patent
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Jun 13, 2023
Grant Date -
Jun 10, 2021
app pub date -
Dec 16, 2020
filing date -
Dec 24, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A security device that exhibits at least one dynamic response upon change of orientation of the security device with respect to gravity, wherein the security device includes a hollow capsule completely filled with a liquid and one or more microscopic elements. In addition, the dynamic response continues after cessation of the change of orientation with respect to gravity. The dynamic response includes a transition of the one or more microscopic elements from substantial mechanical equilibrium to non-equilibrium upon action of the change of orientation with respect to gravity and back to substantial mechanical equilibrium after cessation of the change of orientation with respect to gravity. During the dynamic response, the one or more microscopic elements undergo at least one of a rotational motion and a translational motion relative to the liquid.
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International Classification(s)
- B82Y:SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; ....
- G06Q:DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAP....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- B82B:NANO-STRUCTURES; MANUFACTURE OR TREATMENT THEREOF
- B42D:BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER O....
- G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
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