Surfaces physically transformable by environmental changes

Details Surfaces physically transformable by environmental changes Surfaces physically transformable by environmental changes

2005-09-30

2011-12-27

O'Hern, Brent T (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including sheet or component perpendicular to plane of web...

C117S054000, C257S040000, C264S134000, C359S620000, C359S626000, C359S665000, C359S666000, C428S085000, C428S098000, C428S131000, C428S141000, C428S413000, C428S447000

Reexamination Certificate

active

08084116

ABSTRACT:
An apparatus includes a substrate having a top surface, a substantially regular array of raised structures located over the top surface, and a layer located on the top surface between the structures. Distal surfaces of the structures are farther from the top surface than remaining portions of the structures. The layer is able to contract such that the distal surfaces of the structures protrude through the layer. The layer is able to swell such that the distal surfaces of the structures are closer to the top surface of the substrate than one surface of the layer.

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