Patents by Inventor Enzo Dughera

Enzo Dughera 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).

  • Alarm device for the protection of catalytic converters for the exhaust gases of endothermic motors and vehicle provided with such a device
    Patent number: 5170147
    Abstract: An alarm device is described which can be installed in vehicles equipped with a catalytic exhaust muffler, to protect the same from overheating due to an excess of unburnt substances in the exhaust gases; the device consists of a second catalytic converter arranged upstream from the exhaust muffler along the exhaust pipe, and provided on the inside with a temperature sensor; when the temperature of the second converter exceeds a predetermined threshold, this is signalled by the sensor, possibly to an engine control system.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: December 8, 1992
    Assignee: Fiat Auto S.p.A.
    Inventors: Gianni Graffagno, Enzo Dughera