Abstract: A mounting arrangement for a refrigerator fan, comprising an electric motor (11) to whose shaft is affixed a propeller (12) with an axial flow passing through a refrigerated air outlet (4b) provided through an internal divisional wall (6) of the refrigerator; a support frame (20) having a marginal portion (21) and incorporating a central hub (22) in which is affixed the electric motor (11); a flexible support (30) in the form of an annular flange presenting an outer portion (31), which is peripherally and removably affixed to the contour of the refrigerated air outlet (4b), an inner portion (32) provided with a central opening (35) and with retaining means (36), which are removably locked to the marginal portion (21) of the support frame (20); and an annular membrane portion (33) interconnecting the outer portion (31) and the inner portion (32), in order to allow for small relative axial and radial displacements therebetween.

Abstract: An improvement in a refrigeration system for cabinets provided with a top cover and with internal peripheral walls made of metallic sheet and around which is seated an evaporating means (1) connected to the outlet of an expanding device (2) which is connected to the outlet pf a condenser (3) and to the suction of a compressor (4) of the refrigeration system, said evaporating means (1) comprising at least two tube extensions (10), each of them being seated around a respective height portion of the internal peripheral walls (P) and having a refrigerant fluid inlet end maintained in fluid communication with a respective expanding device (2), and a refrigerant fluid outlet end maintained in fluid communication with the compressor (4).

Abstract: A retractable shelf for the cabinet of a refrigeration appliance, comprising a lateral edge (21) which is slidingly mounted, by two longitudinally spaced apart seating regions (22), on respective rail portions (30) affixed in opposite internal lateral walls (12) of the cabinet (10), in order to be selectively displaced between at least one lower operative position and one transitional intermediary position, in which it is upwardly forwardly displaced, and also between this last position and an upper operative position, in which it is backwardly displaced, situated above and vertically spaced from the lower operative position.

Abstract: An airflow control system in refrigerators and freezers, which comprise: a refrigerating compartment (10; an air cooling compartment (20) lodging an (21) and a fan (22); and an air distributing plenum (23), receiving a forced airflow from the fan (22) and having a front wall (24) provided with air passages (25) through which the forced airflow is supplied to the interior of the refrigerating compartment (10), at least part of the air passages (25) provided in the front wall (25) of the air distributing plenum (23) being operatively associated with respective closing means (40), which are selectively displaced to different operative positions, in which they maintain the air passages (25) with a free area dimensioned as a function of the intensity of the forced airflow to

Abstract: A vaccum-breaking valve comprising: a tubular body (10) mounted through one of the walls (P) of the cabinet (G) and having inner (11) and outer (12) ends, a valve seat (15) defining a fluid communication between the inside and the outside of cabinet (G); and a seal constantly biased towards a closed position, blocking said fluid communication and dispalceable towards an open valve position. The seal comprises a slide (20), which is axially and slicingly mounted through the valve seat (15) and has a surrounding sealing ring (25), which is seated against the valve seat (15) when the slide (20) is displaced to the closed seal position, the slide (20) being provided with at least one air passage (24) interconnecting the upstream and downstream sides of the valve seat (15) when the slide (20) is in the open seal position.

Abstract: A system for detecting low voltage in an electric appliance having multiple loads (10) associated with drive switches (20) commanded by respective electronic controls (30) which are energized from a power source (40) connected to an electric network and which are operatively coupled to a command module (50). The system comprises: a compensating load (60), connected to the power source (40) and constructed to maintain constant the relation between the voltage of the electric network and the voltage of the power source (40), regardless of the number of loads (10) being energized; a control unit (70) associated with the command module (50) and with the compensating load (60), to define the current consumption to be produced by the compensating load (60), and a voltage sensing means (S) associated with the power source (40) and with the control unit (70) to promote the de-energization of the loads (10) when the voltage of the power source (40) is lower than a predetermined minimum value.

Abstract: A vacuum-breaking valve for refrigeration appliances, comprising: a tubular body (10) made of a thermally conductive material and mounted through one of the walls of a cabinet (G) of the refrigeration appliance; a valve seat (30) mounted to the tubular body (10); a sealing means (40) constantly biased towards a closed position, in which it is seated on said valve seat (30), and movable towards an open position when the pressure inside cabinet (G) is lower than the pressure outside said cabinet (G); and a heat collector (20) provided with a thermal radiation collecting surface (21) mounted to the tubular body (10) and facing a heat source external to cabinet (G).

Abstract: A laundering process for a laundering machine, the machine comprising a tank (1), for containing a washing liquid, and a perforated basket (2), for containing the clothes and which is internal to the tank (1), the laundering process comprising a soaking step, a washing step and generally a centrifugal step, a control unit commanding the operation of the laundering machine. The soaking step comprises the following phases: feeding the tank (1) with the washing liquid, until reaching a determined soaking level (L2), which is lower than a respective washing level (L1) selected among a plurality of washing levels, and submitting the load of clothes immersed in the washing liquid, alternately, to a resting condition during a resting period (Tr), and to an agitation condition, during at least one agitation period (Ta1, Ta2), which is shorter than the resting period (Tr), until the soaking step has been completed.

Abstract: A vane arrangement for air conditioners, comprising a frame (10), which is attachable to the front panel and which hinges each one of the first and second vanes (20, 30), each assembly of first and second vanes (20, 30) defining at least one group of vanes joined to each other by a first and a second connecting element (40, 50), respectively, so that the vanes of each group may be angularly and jointly displaced around their hinge axes, each said group being independently actuated in order to direct the air flow through the respective vanes.

Abstract: A driving arrangement for air refrigeration appliances, of the type comprising a fan (F), a compressor (C), a thermostat (T) and first and second selecting devices (10, 20), which are manually displaceable for activating the fan (F) and compressor (C) and for adjusting the thermostat (T). According to the invention, the first selecting device (10) is displaced along a first portion (1), at the end of which the fan (F) is turned on, a second portion (2), in which only the fan (F) is kept turned on and a third portion (3), in which beginning the compressor (C) is turned on and along which the thermostat (T) is adjusted between a minimum cold condition and a maximum cold condition. The second selecting device (20) has two operative positions, each defining a ventilation regimen for the fan (F).