Abstract: Nozzle for air ducts, said nozzle comprising a tube (6) of fabric or foil, the tube (6) having, at its inlet end (2), an inlet opening for intake of air from an air duct, and, at its outlet end (11), an outlet opening for outlet of air, wherein the nozzle is provided, at its external side, with a proximal circumferential annular ring (1a) and a distal circumferential annular ring (1b) which are arranged mutually spaced apart, and an adjustment device for adjusting direction of air exiting the nozzle, wherein the adjustment device comprises an adjustment element (7) and a pair of fastening elements (4), each of the fastening elements (4) being attached to the adjustment element (7) and comprising a fastening part (4a), which comprises a saddle part and two arms extending from said saddle part and which is for removable fastening of the fastening element (4) to the circumferential annular ring (1a, 1b) by inserting the circumferential annular ring (1a, 1b) between the pair of arms of the fastening part (4a), wh

Abstract: A reinforcing assembly for air ducts includes a helical reinforcement with an outer circumference and at least one connecting element for fixing a pitch of a helix formed by the helical reinforcement. The at least one connecting element may be fixed to the helical reinforcement by a plurality of j joints with mutually arranged spacing. The reinforcing assembly may be combined with an air duct to form a duct system for transmitting and distributing air that retains its shape regardless of the system's internal air pressure.

Abstract: Air-conditioning diffuser for distributing air, comprising a chamber (10) provided with an inlet orifice (30) for feeding air and with an outlet wall (20) made of a woven or non-woven fabric or foil, the outlet wall (20) comprising at least one array of through-holes (22) for distributing air into the surrounding environment. The air-conditioning diffuser further comprises a plurality of air deflecting pockets (23) for redirecting the air flowing through the through-holes (22) out of the air-conditioning diffuser, each air deflecting pocket (23) being attached to the outlet wall (20) on the outer side of the same, overlapping at least one through-hole (22) spaced apart from the through-hole and being open towards the space adjoining the outlet wall (20).

Abstract: A reinforcing assembly for air ducts includes a helical reinforcement with an outer circumference and at least one connecting element for fixing a pitch of a helix formed by the helical reinforcement. The at least one connecting element may be fixed to the helical reinforcement by a plurality of j joints with mutually arranged spacing. The reinforcing assembly may be combined with an air duct to form a duct system for transmitting and distributing air that retains its shape regardless of the system's internal air pressure.

Abstract: A reinforcing assembly for air ducts includes a helical reinforcement with an outer circumference and at least one connecting element for fixing a pitch of a helix formed by the helical reinforcement. The at least one connecting element may be fixed to the helical reinforcement by a plurality of joints with mutually arranged spacing. The reinforcing assembly may be combined with an air duct to form a duct system for transmitting and distributing air that retains its shape regardless of the system's internal air pressure.

Abstract: An air-conditioning duct comprises a regulating membrane attached to a peripheral wall of the duct and a shifting element. The membrane has a first end that is attached to the shifting element and faces an inlet for supplying air. An area of the membrane comprising said first end is adapted for being selectively shifted to a first or second portion of the peripheral wall. The shifting element is for shifting the first end of the membrane to the first or second portion of the peripheral wall. The membrane has a second end, which faces away from the inlet of the duct, secured inside the duct to ensure that shifting of the area of the first end of the membrane to the second portion of the peripheral wall prevents the air flow from passing through that portion of the duct situated downstream of the attached second end of the membrane.

Abstract: An air conditioning element of a woven or non-woven fabric includes a wall provided with at least a first array of through holes for distributing air, wherein the following relations apply to the through holes constituting the first array: the twofold value of the square root of the quotient between the value of the inlet area of a through hole and the value ? is less than or equal to the value of the wall thickness of the element in the region adjacent to the through hole and the center line of the through hole intersects the inlet plane of the through hole at an angle ?=60° through 89°, more preferably 80° through 88°, most preferably 83° through 87°.

Abstract: A reinforcing assembly for air ducts includes a helical reinforcement with an outer circumference and at least one connecting element for fixing a pitch of a helix formed by the helical reinforcement. The at least one connecting element may be fixed to the helical reinforcement by a plurality of joints with mutually arranged spacing. The reinforcing assembly may be combined with an air duct to form a duct system for transmitting and distributing air that retains its shape regardless of the system's internal air pressure.

Abstract: A duct for air transport comprises an inner jacket having an inlet end for connecting the duct to an air supply and an outlet end for connecting the duct to a duct for a further transport or distribution of air, and an outer jacket made of an impervious material and surrounding the inner jacket spaced therefrom. An insulating chamber is formed between the inner jacket and the outer jacket. The inner jacket and the outer jacket are adapted to conduct from the interior space of the inner jacket through the insulating chamber into the ambient atmosphere, namely in an amount of 0.02 to 100‰ of the total volume of air fed into the inner jacket. The area for conducting air into the insulating chamber and the area for conducting air away from the insulating chamber are spaced from each other during the operation of the duct.

Abstract: An air-conditioning duct comprises a regulating membrane attached to a peripheral wall of the duct and a shifting element. The membrane has a first end that is attached to the shifting element and faces an inlet for supplying air. An area of the membrane comprising said first end is adapted for being selectively shifted to a first or second portion of the peripheral wall. The shifting element is for shifting the first end of the membrane to the first or second portion of the peripheral wall. The membrane has a second end, which faces away from the inlet of the duct, secured inside the duct to ensure that shifting of the area of the first end of the membrane to the second portion of the peripheral wall prevents the air flow from passing through that portion of the duct situated downstream of the attached second end of the membrane.

Abstract: A duct for air transport comprises an inner jacket having an inlet end for connecting the duct to an air supply and an outlet end for connecting the duct to a duct for a further transport or distribution of air, and an outer jacket made of an impervious material and surrounding the inner jacket spaced therefrom. An insulating chamber is formed between the inner jacket and the outer jacket. The inner jacket and the outer jacket are adapted to conduct from the interior space of the inner jacket through the insulating chamber into the ambient atmosphere, namely in an amount of 0.02 to 100% of the total volume of air fed into the inner jacket. The area for conducting air into the insulating chamber and the area for conducting air away from the insulating chamber are spaced from each other during the operation of the duct.

Abstract: Air-conditioning diffuser for distributing air, comprising a chamber (10) provided with an inlet orifice (30) for feeding air and with an outlet wall (20) made of a woven or non-woven fabric or foil, the outlet wall (20) comprising at least one array of through-holes (22) for distributing air into the surrounding environment. The air-conditioning diffuser further comprises a plurality of air deflecting pockets (23) for redirecting the air flowing through the through-holes (22) out of the air-conditioning diffuser, each air deflecting pocket (23) being attached to the outlet wall (20) on the outer side of the same, overlapping at least one through-hole (22) spaced apart from the through-hole and being open towards the space adjoining the outlet wall (20).

Abstract: Air conditioning element (1) of a woven or non-woven fabric comprises a wall provided with at least a first array of through holes (21) for distributing air, wherein the following relations apply to the through holes (21) constituting said first array: the twofold value of the square root of the quotient between the value of the inlet area (S) of a through hole (21) and the value ? is less than or equal to the value of the wall thickness of the element (1) in the region adjacent to said through hole (21) and the centre line (O1) of the through hole (21) intersects the inlet plane of said through hole (21) at an angle ?=60° through 89°, more preferably 80° through 88°, most preferably 83° through 87°.

Abstract: A reinforcing assembly for an air conditioning duct comprises a plurality of annular elements having outer circumferences configured to define an inner cross section of the conditioning duct, at least three interconnecting cords for linking the outer circumferences of the annular elements in a series, and fixing means for securing the positions of the annular elements relative to the interconnecting cords.