Patents by Inventor Marco Lorenzi
Marco Lorenzi 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).
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Patent number: 10136473Abstract: A washing and/or drying appliance includes a heating circuit (140) for heating a washing liquid and/or a drying air flow. The heating circuit is connected to voltage distribution lines (105a,105b) distributing power inside the appliance and includes at least one heating resistor (205) in series to switch means (210a,210b) controlled by an appliance control unit (125) for selectively energizing the heating resistor when required. The switch means of the heating circuit includes first and second switches (210a,210b) in series to the heating resistor, the heating resistor being interposed between the first and second switch. A monitoring circuit arrangement is associated with the heating circuit. The monitoring circuit arrangement includes a resistive network including a first resistor (R1) connected to the heating circuit so as to be bypassed when the first switch is closed, the heating resistor, and a second resistor (R2) connected to the heating circuit so as to be bypassed when the second switch is closed.Type: GrantFiled: April 26, 2011Date of Patent: November 20, 2018Assignee: Electrolux Home Products Corporation N.V.Inventors: Paolo Driussi, Marco Lorenzi
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Patent number: 9915442Abstract: A household appliance has a heating circuit (140) for heating a fluid including a heating element (150) that can be selectively energized (155) to determine the heating of the fluid, and a monitoring unit (125) for monitoring the operation of the heating circuit. The monitoring unit (125) is configured to monitor at least one electrical potential internal to the heating circuit (140). The at least one electric potential internal to the heating circuit (140) is at least one among: an internal electric potential detected at a first terminal (160b) of the heating element (150) connected to an on/off switch (155) of the heating circuit (140); an internal electric potential detected at a second terminal (160a) of the heating element (150) connected to a main switch (135) of the appliance or to a safety switch provided for switching the heating circuit off in case of malfunction of the on/off switch (155).Type: GrantFiled: May 12, 2011Date of Patent: March 13, 2018Assignee: Electrolux Home Products Corporation N.V.Inventors: Paolo Driussi, Marco Lorenzi
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Publication number: 20150033806Abstract: The present invention relates to a laundry treating machine (1) comprising a casing (10), a rotatable laundry container (7) suitable for receiving the laundry to be treated and one or more peripheral units (F1, H1, T1, SW1, SW2, S1, 11, Ml, M2, P1) which enable the treatment to be carried out. The laundry treating machine (1) comprises a control unit (20; 120; 220) comprising a printed circuit board (21; 121; 221) with electric and/or electronic devices (22) mounted thereon. The control unit (20; 120; 220) comprises a control and communication section (31) for communicating with a user interface (11), a motor driving section (32; 132) for setting and varying the speed of at least a motor and/or a high power loads section (28) comprising switching devices suitable for controlling at least one heater device (H1, R1, R2) and a power section (24) for supplying power to at least one of said sections (28, 31, 32; 132).Type: ApplicationFiled: January 22, 2013Publication date: February 5, 2015Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Walter Cerrato, Mirko Cenedese, Marco Lorenzi
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Publication number: 20150028016Abstract: A laundry machine (200) adapted to process laundry (220) by means of an operative fluid is provided. The laundry machine (200) comprises a drum (215) for housing the laundry (220), an electrical heater apparatus (280) configured to heat up the operative fluid, at least one electrical device (105), and an inverter supply block (100) for electrically supplying the at least one electrical device (105). The inverter supply block (100) comprises a bulk capacitor (130). The laundry machine (200) further comprises a limiter circuit (300; 280) configured to temporarily limit a charging current drawn by the inverter supply block (100) during a bulk capacitor (130) charging phase. The limiter circuit (300; 280; 330) is configured to selectively force the passage of the charging current through the electrical heater apparatus (280).Type: ApplicationFiled: October 24, 2012Publication date: January 29, 2015Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Alessandro Cecco, Hubert Dorigo, Paolo Driussi, Marco Lorenzi
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Patent number: 8869426Abstract: A washing and/or drying appliance includes a heating circuit (140) for heating a washing liquid and/or a drying air flow, connected to voltage distribution lines (105a,105b) distributing power inside the appliance. The heating circuit includes at least one heating resistor (205) in series to switch means (210a,210b) controlled by an appliance control unit (125) for selectively energizing the heating resistor when required. The switch means of the heating circuit includes a first and a second switch (210a,210b) in series to the heating resistor, the heating resistor being interposed between the first and second switches. A monitoring circuit arrangement is provided, which includes a first resistor (R1) in shunt to the heating resistor and having a resistance substantially higher than that of the heating resistor, and a pull-up network connected between a first terminal (215b;215a) of the heating resistor and one of the voltage distribution lines.Type: GrantFiled: May 12, 2011Date of Patent: October 28, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Marco Lorenzi, Paolo Driussi
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Publication number: 20140285929Abstract: The present invention relates to an electric appliance (100) comprising an electric load (225), and a printed circuit board assembly (115) for electronically managing the electric appliance (100); the printed circuit board assembly comprises a slave printed circuit board (220s) operatively associated with the electric load (225) for driving it, and a master printed circuit board (220m) operatively associated with the slave printed circuit board (220s) and arranged for receiving an electric power supply (L, N) of the electric appliance and for selectively providing/stopping the provision of an operative electric power to the slave printed circuit board (220s) for energization/de-energization thereof.Type: ApplicationFiled: October 31, 2012Publication date: September 25, 2014Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Marco Lorenzi, Paolo Driussi, Alessandro Cecco, Hubert Dorigo
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Publication number: 20130126517Abstract: A household appliance has a heating circuit (140) for heating a fluid including a heating element (150) that can be selectively energized (155) to determine the heating of the fluid, and a monitoring unit (125) for monitoring the operation of the heating circuit. The monitoring unit (125) is configured to monitor at least one electrical potential internal to the heating circuit (140). The at least one electric potential internal to the heating circuit (140) is at least one among:—an internal electric potential detected at a first terminal (160b) of the heating element (150) connected to an on/off switch (155) of the heating circuit (140);—an internal electric potential detected at a second terminal (160a) of the heating element (150) connected to a main switch (135) of the appliance or to a safety switch provided for switching the heating circuit off in case of malfunction of the on/off switch (155).Type: ApplicationFiled: May 12, 2011Publication date: May 23, 2013Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Paolo Driussi, Marco Lorenzi
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Publication number: 20130119047Abstract: A washing and/or drying appliance includes a heating circuit (140) for heating a washing liquid and/or a drying air flow. The heating circuit is connected to voltage distribution lines (105a,105b) distributing power inside the appliance and includes at least one heating resistor (205) in series to switch means (210a,210b) controlled by an appliance control unit (125) for selectively energizing the heating resistor when required. The switch means of the heating circuit includes first and second switches (210a,210b) in series to the heating resistor, the heating resistor being interposed between the first and second switch. A monitoring circuit arrangement is associated with the heating circuit. The monitoring circuit arrangement includes a resistive network including a first resistor (R1) connected to the heating circuit so as to be bypassed when the first switch is closed, the heating resistor, and a second resistor (R2) connected to the heating circuit so as to be bypassed when the second switch is closed.Type: ApplicationFiled: April 26, 2011Publication date: May 16, 2013Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Paolo Driussi, Marco Lorenzi
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Publication number: 20130061488Abstract: A washing and/or drying appliance includes a heating circuit (140) for heating a washing liquid and/or a drying air flow, connected to voltage distribution lines (105a,105b) distributing power inside the appliance. The heating circuit includes at least one heating resistor (205) in series to switch means (210a,210b) controlled by an appliance control unit (125) for selectively energizing the heating resistor when required. The switch means of the heating circuit includes a first and a second switch (210a,210b) in series to the heating resistor, the heating resistor being interposed between the first and second switches. A monitoring circuit arrangement is provided, which includes a first resistor (R1) in shunt to the heating resistor and having a resistance substantially higher than that of the heating resistor, and a pull-up network connected between a first terminal (215b;215a) of the heating resistor and one of the voltage distribution lines.Type: ApplicationFiled: May 12, 2011Publication date: March 14, 2013Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Marco Lorenzi, Paolo Driussi