Patents by Inventor Sreekumari Raghavan

Sreekumari Raghavan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SELF-TUNING PIEZOELECTRIC VIBRATION ENERGY HARVESTER
    Publication number: 20210159816
    Abstract: Piezoelectric vibrational energy harvesters (PVEHs) include a Macro Fiber Composite (MFC)) piezoelectric transducer coupled to a cantilever to harvest vibrational energy. One or more Ionic Polymer Metal Composite (IPMC) strips are situated to provide device tuning over a wide frequency range by applying variable contact force to the cantilever. Power consumption for tuning is sufficiently low that the tuning actuator (IPMCs) can be powered using harvested energy.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 27, 2021
    Inventors: Rishi Gupta, Sreekumari Raghavan