Abstract: A system and a process for detecting a load of clothes in an automatic laundry machine, comprising a voltage sensor, a rotation sensor, and a control unit associated with a timer, with the voltage sensor, and with the rotation sensor and which is supplied with data representative of the medium torque Mmot of the electric motor in different voltage ranges and with data representative of the acceleration and deceleration reference times (Ta1 and Td1) of the electric motor with the basket in the unloaded condition and containing a load of clothes, between two distinct and predetermined rotation values of the electric motor, so as to calculate the moments of inertia (Jv, Jc) of the basket in the unloaded and in the loaded conditions, said control unit calculating the difference between said moments of inertia (Jc e Jv) of the basket and producing a signal representative of the mass of the load of clothes.

Abstract: An air duct arrangement for a refrigerator with forced air circulation of the type that comprises a refrigerating compartment (20) provided with a diffusing duct (23) receiving a refrigerated forced airflow from an air cooling compartment (40). The arrangement comprises at least one distributing duct (60) disposed in the upper portion of a space (V) defined below at least one of the shelves (22). The distributing duct (60) presents a rear end (61) opened to the inside of the diffusing duct (23) and a front end (62) opened to the front region of said space (V) adjacent to the front door (21) of the refrigerating compartment (20) and provided with a plurality of front openings (64, 65, 66) turned to the front region of said space.

Abstract: An arrangement for air distribution in a freezer compartment of the type closed by a front door (11) and to which is generally mounted, close to a respective rear wall, an air cooling compartment (30) in which an evaporator (40) and a fan (50) are lodged, said arrangement comprising at least one distributing tube (60) provided in an upper portion of the freezer compartment (10) and having: a rear end (61) maintained in fluid communication with the interior of the air cooling compartment (30); a front end (62) disposed in the front region of the freezer compartment (10) adjacent to the front door (11) thereof and provided with at least one front opening (63) facing said front region of the freezer compartment (10) and the region of the front door (11) of the latter.

Abstract: A control system for the operation of a kitchen oven comprising a cooking chamber (11) lodging a heat source (20) and a temperature sensor (30); and a thermostatic control device (40) for controlling the energy supplied to the heat source (20) as a function of a selected operating temperature and of the temperature sensed by the temperature sensor (30). The control system further comprises a decoder (50) for producing a digital signal for each temperature of a scale (45) preset in the thermostatic control device (40); and an electronic control module (M) comprising a processing unit (60) and an audible alarm (80). The processing unit (60) receives from the decoder (50) and processes a digital signal indicative of the activation of the oven and of the operating temperature selected in the thermostatic control device (40), in order to activate the audible alarm (80) when a pre-established initial heating time has elapsed, so that the cooking chamber (11) reaches the selected operating temperature.

Abstract: A mounting arrangement for the internal dividing elements of refrigerators and freezers, which comprise a compartment (C) having two lateral walls (14), each carrying at least one rail (20) on which is slidingly seated an adjacent lateral portion (30) of an internal dividing element (E) to be horizontally displaced between a first position, in which it is retracted inside the compartment (C), and second positions, in which it is partially displaced forwardly and outwardly from the compartment (C). According to the invention, each rail (20) comprises a flat horizontal upper track (23) and a lower track (24), each lateral portion (30) of the internal dividing element (E) comprising a seating surface (31), to be slidingly seated on the upper track (23) of the respective rail (20), and a retaining surface (32) disposed below the lower track (24).

Abstract: A diagnosis system for household electric appliances, such as refrigerators, freezers, and others, presenting multiple loads, energized by switches commanded by electronic c ontrols coupled to a command module, which energizes the loads and an interface. The system includes a voltmeter to measure a first voltage in the inlet of the loads with the switches opened and a second voltage in the inlet of each load with respective switch closed, and a control unit for processing the values of the first voltage and of each second voltage. The control unit provides an interface with an indication of a failure in the command module, in the switches, or in the respective electronic controls thereof, in case a second voltage presents a value that is equal to or higher than that of the first voltage.

Abstract: An evaporator for a refrigeration appliance comprising a tube extension presenting an inlet (11) for the refrigerant fluid in liquid state and an outlet (12) for the refrigerant fluid in gaseous state, said tube extension (10) comprising at least two tube portions (10a, 10b) arranged in series and having different diameters which are dimensioned to guarantee, to the refrigerant fluid flow, a more uniform speed in the interior of the evaporator, without altering the flow rate of this refrigerant fluid between the inlet (11) and the outlet (12) of the tube extension (10).

Abstract: An air duct system for a combined refrigerator of the forced air circulation type and comprising a freezing compartment (1) and a refrigerating compartment (2), which are superposed and separated by an intermediate wall (3), and further having an air cooling compartment (4) lodging an evaporator (5) and a fan (6) and presenting at least one circulated air inlet (4a) and at least one refrigerated air outlet (4b). The system comprises a body (10) mounted to the inside of the intermediate wall (3) and defining a rear chamber (11), which is opened to the circulated air inlet (4a); a transversal through-duct (12) communicating the refrigerated air outlet (4b) with the refrigerating compartment (2); at least one first and one second return duct (13, 14) presenting a rear end (13b, 14b) opened to the rear chamber (11), and a front end (13a, 14a) opened to the inside of the freezing compartment (1) and of the refrigerating compartment (2), respectively.

Abstract: An evaporator for a refrigeration system, comprising a tube provided with fins and mounted in the form of a coil, conducting a refrigerating fluid therewithin and comprising tube portions (20a) arranged parallel to each other and which are transversal to the direction of a forced airflow (F) that passes externally through the evaporator (10), from a first end region (11) of air ad to a second end region (12) of air outlet of the evaporator (10). The tube portions (20a) are arranged in the form of at l (S), having an inlet end (21) provided in the second end region (12) of the evaporator (10) and an outlet end (22) prov first end region (11) of the evaporator (10), so that the refrigerating fluid flows through the coil (S) in counterflow in relation forced airflow (F).

Abstract: An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in multiple rows extending transversally to the direction of a forced airflow (F). The fins (10), which are incorporated to the first and second tubes (20) are spaced from each other by a larger distance (d), when they are operatively associated with a refrigerating environment, and by a smaller distance (d), when they are operatively associated with a freezing environment. Said distances (d) decrease at each two subsequent tubes (20), until reaching at least the third tube (20), said distance being then maintained at a minimum value for the other subsequent tubes (20).

Abstract: An accessory arrangement for a refrigerator door, and accessories being in the form of can holders (20), median shelves (30), wire frame shelves (30a), and other means for supporting the products to be refrigerated, said door (10) of the refrigerator having an internal wall (11) carrying retaining means (12), which are identical to each other and disposed according to horizontal rows and vertical columns, each retaining means (12) being able to receive and retain, simply by fitting a respective engaging means (40) incorporated to one of said accessories to be removably affixed to the internal wall (11) of the door (10). The distances between the vertical columns of the retaining means (12) and the widths of the accessories are designed so that the useful width of said internal wall (11) is fully occupied with multiple accessories adjacently disposed side by side.

Abstract: An evaporator for a refrigeration system, comprising a tube provided with fins and mounted in the form of a coil, conducting a refrigerating fluid therewithin and comprising tube portions (20a) arranged parallel to each other and which are transversal to the direction of a forced airflow (F) that passes externally through the evaporator (10), from a first end region (11) of air admission, to a second end region (12) of air outlet of the evaporator (10). The tube portions (20a) are arranged in the form of at least one coil (S), having an inlet end (21) provided in the second end region (12) of the evaporator (10) and an outlet end (22) provided in the first end region (11) of the evaporator (10), so that the refrigerating fluid flows through the coil (S) in counterflow in relation to the forced airflow (F).

Abstract: An air distribution system for combined refrigerators of the type that comprises: a freezing compartment (10) and a refrigerating compartment (20); an air-cooling compartment (40) lodging at least one evaporator (45); a distributing duct (60) having a rear window (62) opened to the air-cooling compartment (40), at least one front opening (65) communicating with the freezing compartment (10) and one end opening (64) maintained in communication with the refrigerating compartment (20); and at least one fan (46, 47) producing a forced airflow from the air-cooling compartment (40) to the freezing compartment (10) and to the refrigerating compartment (20), said distributing duct (60) carrying a conduct (63), having a first end coupled to the end opening (64) of the distributing duct (60), and a second end selectively placed in fluid communication with one of the parts defined by the distributing duct (60) and by the air-cooling compartment (40).

Abstract: A lamp support for a cabinet including a tubular body (10), which carries adjacent to an end (11), a lamp socket (S) receiving, by an open opposite end (12), a lamp (L) having part of its extension projecting outwardly from said opposite end (12) of the tubular body (10) which incorporates, in a single piece and along part of its peripheral extension, a deflective wall (20) which is dimensioned to surround, laterally and axially and with a certain spacing, the portion of the lamp projecting outwardly from the tubular body (10).

Abstract: A shelf arrangement for ovens, whose cabinet (10) is provided with lateral walls (11) and a front opening (12) closed by a door (13) that is inferiorly and horizontally tiltable, said lateral walls (11) being provided with rails (14, 15), on which is slidingly seated at least one shelf (30). The shelf (30) is manually displaceable between a retracted operative position and a loading position, which is parallel, elevated, and outwardly displaced in relation to the operative position.

Abstract: An air duct arrangement for a refrigerator with forced air circulation of the type that comprises a refrigerating compartment (20) provided with a diffusing duct (23) receiving a refrigerated forced airflow from an air cooling compartment (40). The arrangement comprises at least one distributing duct (60) disposed in the upper portion of a space (V) defined below at least one of the shelves (22). The distributing duct (60) presents a rear end (61) opened to the inside of the diffusing duct (23) and a front end (62) opened to the front region of said space (V) adjacent to the front door (21) of the refrigerating compartment (20) and provided with a plurality of front openings (64, 65, 66) turned to the front region of said space.

Abstract: An external tray arrangement for a refrigerator or freezer cabinet, of the type presenting a horizontal upper wall (10). According to the invention, the upper wall (10) is provided with a plurality of holes (12), each lodging and retaining an internally threaded tubular retaining means (20); a tray (30) inferiorly incorporating tubular projections (31), each having a lower end seated on the upper wall (10) of the cabinet (G) in alignment with a respective tubular retaining means (20); and a screw (40) seated on the tray (30), passing through each tubular projection (31) and presenting a threaded portion engaged with the thread of the respective tubular retaining means (20), retaining the tray (30) seated on the upper wall (10) of the cabinet (G).

Abstract: An air duct system for a combined refrigerator of the forced air circulation type and comprising a freezing compartment (1) and a refrigerating compartment (2), which are superposed and separated by an intermediate wall (3), and further having an air cooling compartment (4) lodging an evaporator (5) and a fan (6) and presenting at least one circulated air inlet (4a) and at least one refrigerated air outlet (4b). The system comprises a body (10) mounted to the inside of the intermediate wall (3) and defining a rear chamber (11), which is opened to the circulated air inlet (4a); a transversal through-duct (12) communicating the refrigerated air outlet (4b) with the refrigerating compartment (2); at least one first and one second return duct (13, 14) presenting a rear end (13b, 14b) opened to the rear chamber (11), and a front end (13a, 14a) opened to the inside of the freezing compartment (1) and of the refrigerating compartment (2), respectively.