Patents by Inventor Paolo Delgrossi

Paolo Delgrossi 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).

  • Safety method and device for full-voltage power supply to a user apparatus only when required, and control assembly comprising such a safety device
    Patent number: 6100607
    Abstract: A method of detecting a condition requiring connection of a user apparatus with a feeder line comprises the steps of low-voltage power supplying the user apparatus through a detection impedance (17, 17a); detecting the waveform at the ends of the detection impedance; operating connection of the user apparatus with the feeder line when the waveform at the ends of the detection impedance is distorted in a manner that has been pre-established to be caused by actuation of a command in the user apparatus and requiring full powering of same. A device in accordance with the method comprises an analysis circuit (19, 37) detecting (by comparison with sample waveforms stored in a memory (20), for example) distortion of the waveform at the ends of the impedance (17, 17a) and consequently operating powering of the user apparatus.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: August 8, 2000
    Assignee: Compact S.r.l.
    Inventors: Daniele Olivieri, Massimo Brambilla, Paolo Delgrossi