Electrically controlled polymeric gel actuators

Electrically controlled polymeric gel actuators or synthetic muscles capable of undergoing substantial expansion and contraction when subjected to changing pH environments, temperature, or solvent. The actuators employ compliant containers for the gels and their solvents. The gels employed may be cy...

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Bibliographische Detailangaben
Hauptverfasser:	SEGALMAN, DANIEL J, WITKOWSKI, WALTER R, SHAHINPOOR, MOHSEN, ADOLF, DOUGLAS B
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS BLASTING CHAMBERS PROVIDED WITH MANIPULATION DEVICES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HAND TOOLS HEATING HUMAN NECESSITIES HYGIENE LIGHTING MACHINES OR ENGINES FOR LIQUIDS MANIPULATORS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR MEDICAL OR VETERINARY SCIENCE OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS PRODUCING MECHANICAL POWER PROSTHESES SPRING, WEIGHT, INERTIA OR LIKE MOTORS TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	Electrically controlled polymeric gel actuators or synthetic muscles capable of undergoing substantial expansion and contraction when subjected to changing pH environments, temperature, or solvent. The actuators employ compliant containers for the gels and their solvents. The gels employed may be cylindrical electromechanical gel fibers such as polyacrylamide fibers or a mixture of poly vinyl alcohol-polyacrylic acid arranged in a parallel aggregate and contained in an electrolytic solvent bath such as salt water. The invention includes smart, electrically activated devices exploiting this phenomenon. These devices are capable of being manipulated via active computer control as large displacement actuators for use in adaptive structure such as robots.