Patents by Inventor Gianpietro Bianchi

Gianpietro Bianchi 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).

  • Electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines
    Patent number: 6525495
    Abstract: The present invention regards an electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines, fitted with an inductor winding and an armature winding, in which there are reversing means to control the functioning of the electric machine as a generator by mutual inversion of the polarity of said inductor winding and said armature winding. The device includes a switchable current control circuit and an excitation circuit distinct from each other. The control circuit includes an electric load, a power device for connecting and disconnecting said electric load in series in the input circuit of said inductor winding to dissipate the power produced by said electric machine when it functions as a generator, and a variable duration pulse generator for controlling the switching of said power device.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: February 25, 2003
    Inventor: Gianpietro Bianchi
  • Electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines
    Publication number: 20010038273
    Abstract: The present invention regards an electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines, fitted with an inductor winding and an armature winding, in which there are reversing means to control the functioning of the electric machine as a generator by mutual inversion of the polarity of said inductor winding and said armature winding. The device includes a switchable current control circuit and an excitation circuit distinct from each other. The control circuit includes an electric load, a power device for connecting and disconnecting said electric load in series in the input circuit of said inductor winding to dissipate the power produced by said electric machine when it functions as a generator, and a variable duration pulse generator for controlling the switching of said power device.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 8, 2001
    Inventor: Gianpietro Bianchi