Patents by Inventor Angelo Manara

Angelo Manara 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 driving circuit for a bistable actuator
    Patent number: 6242845
    Abstract: An electronic driving circuit for a bistable actuator activated by piezoelectric elements, particularly for residual-current devices, the circuit including a voltage step-up device suitable to step up and store a voltage generated across a secondary winding of a current sensor. The step-up device is connected to a threshold setting device suitable to determine an intervention threshold of a bistable actuator activated by piezoelectric elements, whose activation is determined by an excitation voltage applied across the bistable actuator which is higher than the voltage threshold set by the threshold setting device.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 5, 2001
    Assignee: ABB Ricerca SpA
    Inventors: Franco Colombo, Donato Colonna, Angelo Manara, Walter Turati, Salvatore Brandonisio