Adaptive membrane structure with insertable protrusions

Details Adaptive membrane structure with insertable protrusions Adaptive membrane structure with insertable protrusions

2011-06-07

2011-06-07

Watkins, III, William P (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

C428S138000, C428S139000, C251S333000, C251S331000, C251S334000, C251S904000, C251S129060

Reexamination Certificate

active

07955684

ABSTRACT:
The present invention relates to a multilayer protective enclosure for protecting humans, animals or perishables from hazardous agents in the environment. The enclosure contains a porous adaptive membrane structure that has movable membranes with insertable protrusions. The structure can be made to change its gas, liquid or particulate permeability in response to surrounding environmental conditions. Hence, the enclosure is highly breathable in a non-hazardous environment but impermeable or only semipermeable in a hazardous environment.

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Baker et al., Membrane Technology, Encyclopedia of Polymer Science and Technology, 3rdEdition, pp. 184-248, 2003.

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