Abstract: A fan assembly (1) for an extractor hood to be used in a kitchen over a hob includes a body or casing (2) and an impeller (22) driven by an electric motor (20), with the casing having an internal cavity (4) which is bounded by a wall (3) and suitable to contain the impeller and the electric motor. The impeller (22) is located in the cavity (4) in such a manner as to define, with the wall of cavity, a spiral duct (25) for the vapours taken into the cavity, with the duct opening into a terminal outlet (5) and the casing (2) being open (at 8, 9) on opposite sides (6, 7) to favour the entry of vapours at the level of the impeller (22). The wall (3) of the casing includes a plurality of transversal portions having radii or radial configurations which differ from one another.

Abstract: A vertical domestic extraction hood (100) for air containing vapours and fumes from a hob during food preparation includes a parallelepipedic extractor body (1) containing within it functional components to draw in the aforementioned air, with the extractor body (1) having on one side (5) an opening (7) for discharging the air drawn in and filtered and on another side (8) a different opening for extraction of the air to be filtered. A panel (12) is provided at a distance from front side (10) in front of one said front side (10) of said extractor body (1). The hood (100) includes a sensor for monitoring airborne substances that is arranged in such a way as not to be directly in contact with the extracted air and is able to detect at least one characteristic of such extracted air or the air from the environment where the hood is located.

Abstract: An extraction hood of the up-and-down type for extracting fumes and/or vapours generated on a hob includes a fixed first hood portion (2) and a second extraction hood portion (4) set at a distance from the first extraction hood portion (2) and close to the hob, the second hood portion containing an extraction device (6) capable of drawing in air containing fumes and/or vapours from the hob and directing it towards an opening (11) in the second hood portion (4) to be discharged therefrom and passed towards the first hood portion (2). A conveyor (10) for the discharged air is provided at the opening (11) of the second hood portion (4). The conveyor includes a body (30) having a tubular annular shell (31) containing a honeycomb structure (32) with a number of tubular cells (42) through which the air leaving the second hood portion (4) is discharged.

Abstract: A fan (1) for a smoke and/or vapor extraction system that includes an impeller (3) located within a diffuser or volute (2), the impeller (3) being driven by an electric motor (24); the impeller (3) having a body (20) having a flat part (21) from which a plurality of radially arranged blades (33) extend; these blades are separated from each other by a variable distance based on a periodic function. In addition to this, the diffuser (2) has an air delivery or discharge conduit (5) having a cross-section increasing from an inlet to its outlet (6).

Abstract: An extraction hood of the up-and-down type for extracting fumes and/or vapours generated on a hob includes a fixed first hood portion (2) and a second extraction hood portion (4) set at a distance from the first extraction hood portion (2) and close to the hob, the second hood portion containing an extraction device (6) capable of drawing in air containing fumes and/or vapours from the hob and directing it towards an opening (11) in the second hood portion (4) to be discharged therefrom and passed towards the first hood portion (2). A conveyor (10) for the discharged air is provided at the opening (11) of the second hood portion (4). The conveyor includes a body (30) having a tubular annular shell (31) containing a honeycomb structure (32) with a number of tubular cells (42) through which the air leaving the second hood portion (4) is discharged.

Abstract: An extractor hood capable of extracting fumes and/or vapors being generated on a cooking surface, the hood including a first portion (2) integral with a wall (3) of the room where the cooking surface is located, a second portion (4), spaced apart from the first and close to the cooking surface, and a support connection (50) capable of securing the first portion (2) to the second portion (4), the second portion containing a fan (5) capable of extracting fumes and/or vapors from the cooking surface when the hood (1) is in use. The first portion (2) includes an autonomous extraction device capable of extracting fumes and/or vapors exiting the second portion (4) and extracted from the cooking surface by the fan (5) present in the second portion (4), the hood having no connecting tube between the second portion (2) and the first portion (4).

Abstract: An extractor hood (1) with a body (2) which is hollow in its interior (at 15), provided with a lateral opening (8) and containing in its cavity (15) a fan (16) which can aspirate from the lateral opening (8) fumes and/or vapors generated by an underlying hob of a kitchen, the body (2) having opposite surfaces (5, 6) with a larger area, connected by walls or surfaces (10, 11, 12, 13) with a smaller area, a first one (5) of the surfaces (5, 6) with the larger area being placed on a vertical wall (2) of said kitchen, the second surface (6) with the larger area containing the aforementioned lateral opening (8), and in front of this opening (8) there being a flat panel (23) placed spaced from this second larger surface. This flat panel (23) is parallel to the second surface (6), including when the hood (1) is in use.

Abstract: A fan (1) for a smoke and/or vapour extraction system that includes an impeller (3) located within a diffuser or volute (2), the impeller (3) being driven by an electric motor (24); the impeller (3) having a body (20) having a flat part (21) from which a plurality of radially arranged blades (33) extend; these blades are separated from each other by a variable distance based on a periodic function. In addition to this, the diffuser (2) has an air delivery or discharge conduit (5) having a cross-section increasing from an inlet to its outlet (6).

Abstract: An extractor hood (1) with a body (2) which is hollow in its interior (at 15), provided with a lateral opening (8) and containing in its cavity (15) a fan (16) which can aspirate from the lateral opening (8) fumes and/or vapors generated by an underlying hob of a kitchen, the body (2) having opposite surfaces (5, 6) with a larger area, connected by walls or surfaces (10, 11, 12, 13) with a smaller area, a first one (5) of the surfaces (5, 6) with the larger area being placed on a vertical wall (2) of said kitchen, the second surface (6) with the larger area containing the aforementioned lateral opening (8), and in front of this opening (8) there being a flat panel (23) placed spaced from this second larger surface. This flat panel (23) is parallel to the second surface (6), including when the hood (1) is in use.

Abstract: An extractor hood capable of extracting fumes and/or vapours being generated on a cooking surface, the hood including a first portion (2) integral with a wall (3) of the room where the cooking surface is located, a second portion (4), spaced apart from the first and close to the cooking surface, and a support connection (50) capable of securing the first portion (2) to the second portion (4), the second portion containing a fan (5) capable of extracting fumes and/or vapours from the cooking surface when the hood (1) is in use. The first portion (2) includes an autonomous extraction device capable of extracting fumes and/or vapours exiting the second portion (4) and extracted from the cooking surface by the fan (5) present in the second portion (4), the hood having no connecting tube between the second portion (2) and the first portion (4).

Abstract: A single-phase asynchronous motor (1) for a suction assembly of an extractor hood (5) comprises a stator (13) wherein a rotor is driven into rotation, a driving shaft (15) carrying a rotor (16) being integral with the latter for sucking smokes and vapors from a cooktop placed below the hood (5) and for sending them towards an output (8) of the hood, said stator (13) comprising a plurality of stator core laminations (22) provided with sixteen slots (30) containing metal electrical windings wherein current flows so as to generate a magnetic flux suitable for causing the rotation of the rotor. The stator has an outer diameter (D2) greater than 80 mm, the number of the slots (30) being sixteen, such slots having a unit surface of at least 70 mm2.

Abstract: The kitchen extractor hood (110) is provided with means (38) for generating a first flow (A, B) of a gaseous mixture taken from the internal environment (51) in which the hood (110) is located and releasing it into the external environment (52). The hood (110) is also provided with means (28) for generating a second flow (C, D) of a gaseous mixture taken from the external environment (52) and/or from the internal environment (51) and releasing it into the internal environment (51), as well as with means (10) for recovering part of the thermal energy contained in the first flow (A, B) and transferring it to the second flow (C, D). The means (10) used to recover thermal energy comprise a recovery device (14) comprising in turn a heat exchanger of the heat pipe type (16), featuring an evaporation section (14E) dealing with the first flow (A, B) and a condensation section (14C) dealing with the second flow (C, D).

Abstract: Traditional fixing of raising cords on pleated blinds occurs by sewing plastic flaps in place that hold knots on the raising cords. Adjustment of tension in the raising cords is difficult, because it may be required to loosen the knot and re-tie it in a better location. Loosening and re-tying is avoided in that a plastic clip has slits, in which the raising cords are pinched and locked after being wound 1½ turn around an interjacent tongue in the plane of the plastic clip.

Abstract: In order to facilitate mounting of a roller blind one end of the roller blind tube is fitted with a spring-loaded insert (M). To prevent this from being pushed back a grub screw may be used, but it requires tools and precise alignment. According to the invention a releasable pawl-and-ratchet structure (2, 4) is provided in the end plug (1). The release is obtained by rotating the holder (5) of the pawls (2), whereby they are directed into axial grooves (3 or 3?).

Abstract: A roller blind device includes a drive shaft and two neighboring roller blinds on the drive shaft that are adapted to be adjustable with respect to each other. At least one of the roller blinds may be uncoupled from the drive shaft without the use of tools. Once uncoupled, the roller blinds may be adjusted with respect to each other. The roller blind may then be coupled to the drive shaft, allowing for the two neighboring roller blinds to be lowered and raised.

Abstract: A roller blind device includes a drive shaft and two neighboring roller blinds on the drive shaft that are adapted to be adjustable with respect to each other. At least one of the roller blinds may be uncoupled from the drive shaft without the use of tools. Once uncoupled, the roller blinds may be adjusted with respect to each other. The roller blind may then be coupled to the drive shaft, allowing for the two neighboring roller blinds to be lowered and raised.

Abstract: In order to facilitate mounting of a roller blind one end of the roller blind tube is fitted with a spring-loaded insert (M). To prevent this from being pushed back a grub screw may be used, but it requires tools and precise alignment. According to the invention a releasable pawl-and-ratchet structure (2, 4) is provided in the end plug (1). The release is obtained by rotating the holder (5) of the pawls (2), whereby they are directed into axial grooves (3 or 3?).

Abstract: Two neighboring roller blinds on the same drive shaft may be adjusted with respect to each other by letting one end plug comprise an un-coupling device. This un-coupling device may advantageously be made by means of an unwrap spring that is actuated by means of a ring that surrounds one end plug.

Abstract: Known bottom rails fulfill the requirements stiffness and adjustability at the time of installation, but a noted inequality in the load on the individual raising cord cannot be corrected without a complex dismantling of the bottom rail. According to the invention the bottom rail is suspended in clips (7) that on the one hand holds the lowermost slat (5) and the raising cords (4), on the other hand has means (10) so that the tightening of the raising cords may be adjusted individually.

Abstract: Traditional fixing of raising cords on pleated blinds occurs by means of plastic flaps sewn in place that hold knots on the raising cords. Adjustment of tension in the raising cords is difficult, because it may be required to loosen the knot and re-tie it i a better location. According to the invention this is avoided in that a plastic clip has slits, in which the raising cords are pinched and locked after being wound 1½ turn around an interjacent tongue in the plane of the plastic clip.