(19)
(11) EP 1 022 520 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.05.2001 Bulletin 2001/21

(43) Date of publication A2:
26.07.2000 Bulletin 2000/30

(21) Application number: 00101337.4

(22) Date of filing: 24.01.2000
(51) International Patent Classification (IPC)7: F24F 13/02, E04F 17/04, F16L 25/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 25.01.1999 IT TO990008 U

(71) Applicant: Librizzi, Giuseppe
24068 Seriate (BG) (IT)

(72) Inventor:
  • Librizzi, Giuseppe
    24068 Seriate (BG) (IT)

(74) Representative: Dini, Roberto, Dr. Ing. 
Via Castagnole, 59
10060 None (Torino)
10060 None (Torino) (IT)

   


(54) System for realizing the coupling of duct sections for air conditioning systems


(57) A system, and an angular element used in it, are described, for the mutual fixing of sections (1,2) of a duct for conveying air, wherein the adjacent ends (3) of two sections (1,2) have projections and/or recesses (14A,14B) which cooperate for defining an engagement seat wherein at least a portion (18,18',19) of a structural joining element (4) has to be inserted. According to the invention, said adjacent ends (3) have a portion (16) which is apt for realizing the external coverage of the coupling area between said projections and/or recesses (14A,14B) and the portion (18,18',19) of said structural joining element (4) inserted in said seat.
Moreover, said structural joining element (4) is realized for allowing its easy insertion and/or removal in parallel direction with respect to a ceiling and a wall, when the canalization is placed next to a wall and a ceiling.






Search report