EP 0172226 A4 19870810 - A DEVICE FOR THERMALLY INSULATING UNDERGROUND PIPES.
Title (en)
A DEVICE FOR THERMALLY INSULATING UNDERGROUND PIPES.
Title (de)
VORRICHTUNG ZUR WÄRMEISOLIERUNG UNTERIRIDSCHER RÖHREN.
Title (fr)
DISPOSITIF D'ISOLATION THERMIQUE DE CONDUITES SOUTERRAINES.
Publication
Application
Priority
CH 49384 A 19840202
Abstract (en)
[origin: WO8503478A1] Pipes (7) are placed in chambers (6) extending in pipe receiving boxes (1). The pipe receiving boxes (1) are covered by lids (2) which are arranged in a staggered relationship relative to the boxes (1). Liquid draining channels (4) extend from every chamber (6) through the bottom surface (5) of the boxes (1). The pipes (7) are loosely placed in the chambers (6) allowing for a free thermal expansion thereof. The pipe receiving boxes (1) and the lids (2) are made for instance of a low-compressible foam of hydrophobic plastic having a low water permeability, such as a polystyrene foam. The chambers (6) can receive pipes (7) of varying diameters and are dimension-wise not confined to specific pipe diameters. This leads to a large versatility of the insulating device regarding pipe diameters as well as the taking up of thermal expansions.
IPC 1-7
IPC 8 full level
F16L 59/15 (2006.01)
CPC (source: EP)
F16L 59/15 (2013.01)
Citation (search report)
- [A] CA 1144878 A 19830419 - PREMIER METAL BUILDING SALES L
- [A] DE 3753381 C
- [A] GB 853144 A 19601102 - MINIKAY LTD
- [A] FR 2202524 A5 19740503 - BOUGAULT CLAUDE [FR]
- [A] GB 476316 A 19371206 - WILLIAM HERBERT SMITH
- [A] US 3807458 A 19740430 - ROYSTON L
- [A] GB 1129764 A 19681009 - ERLING RYGH
- [A] DE 3223135 A1 19831229 - DEITERMANN WOLFGANG
- See references of WO 8503478A1
Designated contracting state (EPC)
AT CH DE GB LI NL SE
DOCDB simple family (publication)
WO 8503478 A1 19850815; CA 1233132 A 19880223; DK 446285 A 19851001; DK 446285 D0 19851001; EP 0172226 A1 19860226; EP 0172226 A4 19870810; FI 853785 A0 19851001; FI 853785 L 19851001; NO 853875 L 19851001
DOCDB simple family (application)
US 8500161 W 19850130; CA 473355 A 19850201; DK 446285 A 19851001; EP 85901173 A 19850130; FI 853785 A 19851001; NO 853875 A 19851001