Patents by Inventor Robert R. Ingersoll

Robert R. Ingersoll 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).

  • Publication number: 20240079940
    Abstract: A haptic actuator includes a housing having a ferromagnetic wall. The ferromagnetic wall has a set of one or more half shear ferromagnetic features protruding from the ferromagnetic wall into the housing. A movable magnet is positioned within the housing. A pair of springs, respectively attached to opposite sides of the housing and opposite ends of the movable magnet, bias the movable magnet toward a position of rest between the pair of springs. An electric coil is attached to the set of one or more half shear ferromagnetic features and positioned between the movable magnet and the set of one or more half shear ferromagnetic features.
    Type: Application
    Filed: July 13, 2023
    Publication date: March 7, 2024
    Inventors: David Hiemstra, Nils E. Larson, Robert R. Ingersoll, Eddy Sugyarto