United States of America As Represented by the Secretary of the Air Force

Other

Northwestern University

Christopher E Tabor

Zachary J Farrell

Nicholas J Morris

Carl J Thrasher

Brad L Cumby

Alexander M Watson

William J Burke

Megan A Creighton

Alexander B Cook

Mark C Hersam

Ethan B Secor

Michael F Durstock

James R Deneault

Nahid Ilyas

A variable speed controlled device used for descending, ascending or descending and ascending along a rope such as used in mountain climbing, tree climbing, rescue operations and the like. A friction mechanism controls the speed of the movement of the device along a rope line. A person can quickly and freely ascend a steep slope along a rope line using the device. A person can also descend a steep slope along a rope line and be confident that a friction mechanism will control the rate of descent. An optional locking mechanism may assist with allowing rapid ascent. An optional e-brake mechanism can further ensure the device will lock and prevent further downward movement if the person begins a freefall. The device allows other persons (e.g., a teammate, guide or rescue agency) to safely lower incapacitated or unconscious persons down an alpine mountain, burning building, cliff or the like.

Controlled descender and/or ascender device

The present invention relates to core shell liquid metal encapsulates comprising multi-functional ligands, networks comprising such encapsulates and processes of making and using such encapsulates and networks. When subjected to strain, such network's conductivity is enhanced, thus allowing the network to serve as a healing agent that restores at least a portion of the conductivity in an adjacent conductor.

Core shell liquid metal encapsulates comprising multi-functional ligands and networks comprising same

An extrusion printing process for conductive materials and a conductive material extrusion system. The process includes attaching a counter-electrode to a first side of a substrate. A drive voltage is applied to the counter-electrode and to a conductive material to be extruded onto a second side of the substrate, opposite the first side. The conductive material is extruded onto the second side of the substrate while the drive voltage is being applied to the counter-electrode and conductive material. The conductive material is selected from a metal having a melting point ranging from about −20° C. to about 150° C.

Electrowetting assisted selective printing

The present invention relates to substrates comprising a network comprising core shell liquid metal encapsulates comprising multi-functional ligands and processes of making and using such substrates. The core shell liquid metal particles are linked via ligands to form such network. Such networks volumetric conductivity increases under strain which maintains a substrate's resistance under strain. The constant resistance results in consistent thermal heating via resistive heating. Thus allowing a substrate that comprises such network to serve as an effective heat provider.

Substrates comprising a network comprising core shell liquid metal encapsulates comprising multi-functional ligands

A variable speed controlled device used for ascending and descending along a rope such as used in mountain climbing, tree climbing, rescue operations and the like. A friction mechanism controls the speed of the movement of the device along a rope line. A person can quickly and freely ascend a steep slope along a rope line. A person can also descend a steep slope along a rope line and be confident that a friction mechanism will control the rate of descent. An optional e-brake mechanism can further ensure the device will lock and prevent further downward movement if the person begins a freefall. The device allows other persons (e.g., a teammate, guide or rescue agency) to safely lower an incapacitated or unconscious person down, for example, an alpine mountain, burning building, cliff or the like.

Controlled ascender/descender device

A deformable yet mechanically resilient microcapsule having electrical properties, a method of making the microcapsules, and a circuit component including the microcapsules. The microcapsule containing a gallium liquid metal alloy core having from about 60 to about 100 wt. % gallium and at least one alloying metal, and a polymeric shell encapsulating the liquid core, said polymeric shell having conductive properties.

Residue free electrically conductive material

The present invention relates to core shell liquid metal encapsulates comprising and processes of making and using such encapsulates and networks. The shell(s) of such encapsulates employ a palette of materials having widely varied band structures and/or the desired spin pairing and/or bond polarization. Such encapsulates can be designed to respond to one or more stimuli of choice, including but not limited to electromagnetic, thermal, mechanical, photonic, and/or magnetic and are environmentally robust.

Liquid metal encapsulates having non-native shells

The present invention relates to articles comprising core shell liquid metal encapsulate networks and methods of using core shell liquid metal encapsulate networks to control AC signals and power. Such method permits the skilled artisan to control the radiation, transmission, reflection and modulation of an AC signal and power. As a result, AC system properties such as operation frequency, polarization, gain, directionality, insertion loss, return loss, and impedance can be controlled under strain.

Articles comprising core shell liquid metal encapsulate networks and method to control alternating current signals and power

A deformable yet mechanically resilient microcapsule having electrical properties, a method of making the microcapsules, and a circuit component including the microcapsules. The microcapsule containing a gallium liquid metal alloy core having from about 60 to about 100 wt.% gallium and at least one alloying metal, and a polymeric shell encapsulating the liquid core, said polymeric shell having conductive properties.

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Kettering, OH, United States of America

Christopher E Tabor