(19)
(11) EP 1 955 640 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.07.2009 Bulletin 2009/31

(43) Date of publication A2:
13.08.2008 Bulletin 2008/33

(21) Application number: 08150904.4

(22) Date of filing: 31.01.2008
(51) International Patent Classification (IPC): 
A47L 15/42(2006.01)
 D06F 39/08(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 02.02.2007 IT TO20070075

(71) Applicant: BITRON S.p.A.
10122 Torino (IT)

(72) Inventors:
  • Rivero, Davide
    I-12029 San Damiano Macra (Cuneo) (IT)
  • Brignone, Enzo
    I-12025 Frazione Monastero Dronero (Cuneo) (IT)

(74) Representative: Gerbino, Angelo et al
Jacobacci & Partners S.p.A. Corso Emilia, 8
10152 Torino
10152 Torino (IT)

   


(54) Improved water stop device


(57) The water stop device comprises a solenoid valve having a body (10), an inlet pipe (12) and an outlet pipe (14), a flexible inner water flow tube (16) and a flexible outer safety tube (20) arranged around the inner tube (16), so as to define an annular air gap (22). Both the inner tube (16) and the outer tube (20) arc of corrugated type. The proximal end (18) of the inner tube (16) faces the distal end (26) of the outlet pipe (14) in such a way that the respective longitudinal axes (24) coincide, and the ends (18, 26) can be associated with one another by means of a tubular sleeve (28) arranged, sealed, coaxially on their exterior. Advantageously, the sleeve (28) is made of polymeric material and is produced by a co-moulding technique.







Search report