Patent
Human powered piezoelectric power generating device
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TLDR
In this paper, an energy scavenging apparatus comprises a frame which can be human-carried or human-borne; plural cantilevered bimorph piezoelectric members connected to the frame to have an essentially parallel orientation.Abstract:
An energy scavenging apparatus comprises a frame which can be human-carried or human-borne; plural cantilevered bimorph piezoelectric members connected to the frame to have an essentially parallel orientation, each cantilevered bimorph piezoelectric member comprising a proximal end connected to the frame and a distal end; and, a mass member connected to the distal end of the plural cantilevered bimorph piezoelectric members.read more
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Multi-frequency piezoelectric energy harvester
TL;DR: In this paper, an energy harvesting device with structural members covered with piezoelectric material resonating at different primary frequencies is described. But, the structure to which the device is secured vibrates over a range of frequencies, and more than one member resonates or is close to resonance.
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Biologically powered electroactive polymer generators
Ronald E. Pelrine,Roy D. Kornbluh,Joseph S. Eckerle,Scott E. Stanford,Seajin Oh,Pablo Garcia +5 more
TL;DR: In this paper, a heel-strike generator is described that is integrated into the heel of footwear and is used to convert mechanical energy generated during human bipedal motion to electrical energy.
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Thin layer composite unimorph ferroelectric driver and sensor
Richard F. Hellbaum,Robert G. Bryant,Robert L. Fox,Antony Jalink,Rorhbach Wayne W,Joycelyn O. Simpson +5 more
TL;DR: A method for forming ferroelectric wafers is provided in this article, where a prestress layer is placed on the desired mold and a ferro-electric wafer is placed over this layer, and the layers are heated and then cooled, causing the wafer to become prestressed.
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Micropumps with fixed valves
TL;DR: In this article, a laser-assisted chemical etching technique is employed for providing smooth-walled, curved configuration necessary to obtain the desired flow characteristics of the valves that are used in conjunction with the micropump.
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Piezoelectric actuator and pump using same
TL;DR: In this paper, the diaphragm actuator is typically retained in a device body between the floor seal member and another seal member between which the perimeter of the actuator was sandwiched.