Title:
HOSE ASSEMBLY FOR FEEDING WORKING FLUIDS IN CLEANING DEVICES
Document Type and Number:
WIPO Patent Application WO2004028323
Kind Code:
A3
Abstract:
A hose assembly for feeding working fluids in cleaning devices comprises at least one pair of tubular members (2, 2') each having an outer protective tubular conduit (3, 3') adapted to house at least one inner tubular conduit (4, 4') for working fluid delivery. The inner conduits (4, 4') and the outer conduits (3, 3') of the tubular members are mutually telescopically coupled along their respective longitudinal axes (L>I<, L>E<) to adjust the length of the assembly (1). The inner conduits (4, 4') are made of a first plastic material which is easily continuously resistant to a relative high temperature of the working fluid, and the outer conduits (3, 3') are made of a second plastic material, different from the first plastic material, which is not continuously resistant to the relatively high temperature. The relative high temperature may be of at least 100 DEG C.
Inventors:
ZANCAN ANTONIO (IT)
Application Number:
PCT/IB2003/004257
Publication Date:
July 15, 2004
Filing Date:
September 29, 2003
Export Citation:
Assignee:
ZANCAN ANTONIO (IT)
International Classes:
A47L9/24; A47L11/34; B05B15/06; B05B15/656; B08B3/02; F16L27/12; (IPC1-7): A47L1/08; A47L11/34; A47L11/38; A47L11/40; B08B3/02
Foreign References:
| FR2676376A1 | 1992-11-20 | |||
| DE20211506U1 | 2002-10-31 | |||
| EP1010389A2 | 2000-06-21 | |||
| US6295691B1 | 2001-10-02 | |||
| DE3626997A1 | 1988-02-11 |
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