Patents by Inventor Luigi Martinella

Luigi Martinella 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).

  • Patent number: 7472556
    Abstract: A vacuum insulated refrigerator cabinet comprises an evacuation system for evacuating an insulation space of the cabinet when pressure inside such space is higher than a predetermined value. It comprises a sensor device having an insulation reference element located on one side of said insulation space and temperature sensors for assessing the differences of temperature across the insulation space) and across the insulation reference element, such sensor device being suitable for providing the evacuation system with a signal related to the ratio of the above differences of temperature.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: January 6, 2009
    Assignee: Whirlpool Corporation
    Inventors: David Kirby, Luigi Martinella, Giorgio Giudici
  • Patent number: 7472555
    Abstract: A vacuum insulated refrigerator cabinet comprises an evacuation system for evacuating an insulation space of the cabinet when pressure inside such space is higher than a predetermined value. The cabinet presents sensor means comprising a temperature sensor and a heater both located within the insulation space and a control system for activating the heater according to a predetermined heating cycle and for receiving a signal from the temperature sensor, such control system being able to provide the evacuation system with a signal related to the insulation level within the insulation space.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: January 6, 2009
    Assignee: Whirlpool Corporation
    Inventors: David Kirby, Luigi Martinella, Giorgio Giudici
  • Publication number: 20050248249
    Abstract: A vacuum insulated refrigerator cabinet comprises an evacuation system for evacuating an insulation space of the cabinet when pressure inside such space is higher than a predetermined value. It comprises a sensor device having an insulation reference element located on one side of said insulation space and temperature sensors for assessing the differences of temperature across the insulation space and across the insulation reference element, such sensor device being suitable for providing the evacuation system with a signal related to the ratio of the above differences of temperature.
    Type: Application
    Filed: June 27, 2003
    Publication date: November 10, 2005
    Inventors: David Kirby, Luigi Martinella, Giorgio Giudici
  • Patent number: 6955196
    Abstract: A vacuum insulated refrigerator cabinet comprises a substantially gas-tight container that is filled with a porous core and a gas absorber that communicates with said container and is filled with a gas adsorbent material. Between the container and the gas absorber there is provided a valve adapted to close the communication between the container and the gas absorber, and a heater is provided for heating the gas absorber in order to evacuate gases when the valve is closed.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: October 18, 2005
    Assignee: Whirlpool Corporation
    Inventors: Giorgio Giudici, David B. Kirby, Luigi Martinella, Beat D. Stocker
  • Publication number: 20050223721
    Abstract: A vacuum insulated refrigerator cabinet comprises an evacuation system for evacuating an insulation space of the cabinet when pressure inside such space is higher than a predetermined value. The cabinet presents sensor means comprising a temperature sensor and a heater both located within the insulation space and a control system for activating the heater according to a predetermined heating cycle and for receiving a signal from the temperature sensor, such control system being able to provide the evacuation system with a signal related to the insulation level within the insulation space.
    Type: Application
    Filed: June 27, 2003
    Publication date: October 13, 2005
    Inventors: David Kirby, Luigi Martinella, Giorgio Giudici
  • Publication number: 20030197017
    Abstract: A vacuum insulated refrigerator cabinet comprises a substantially gas-tight container that is filled with a porous core and a gas absorber that communicates with said container and is filled with a gas adsorbent material. Between the container and the gas absorber there is provided a valve adapted to close the communication between the container and the gas absorber, and a heater is provided for heating the gas absorber in order to evacuate gases when the valve is closed.
    Type: Application
    Filed: March 27, 2003
    Publication date: October 23, 2003
    Inventors: Giorgio Giudici, David B. Kirby, Luigi Martinella, Beat D. Stocker
  • Publication number: 20030041612
    Abstract: A domestic refrigeration appliance, such as a refrigerator, freezer or the like, comprising a door and with vacuum heat insulation interposed between a substantially vacuum-tight inner shell and a substantially vacuum-tight outer shell; the two shells are joined together vacuum-tight on that side towards the door by means of a flange-like extension provided on one of said shells and welded vacuum-tight to the other shell.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 6, 2003
    Inventors: Mauro Piloni, Luigi Martinella, Fiorenzo Casoli, Andrea Picozzi