Global Patent Index - EP 2185342 A1

EP 2185342 A1 20100519 - METHOD FOR WELDING PLASTIC PIPES TOGETHER

Title (en)

METHOD FOR WELDING PLASTIC PIPES TOGETHER

Title (de)

VERFAHREN ZUM VERSCHWEIßEN VON KUNSTSTOFFROHREN

Title (fr)

PROCÉDÉ DE SOUDAGE DE TUYAUX EN PLASTIQUE

Publication

EP 2185342 A1 20100519 (DE)

Application

EP 08801840 A 20080904

Priority

  • EP 2008007240 W 20080904
  • DE 102007042806 A 20070907

Abstract (en)

[origin: WO2009033603A1] The invention relates to a method for welding at least two plastic pipes (10, 11) or compound pipes together using a tubular sleeve body (12) which covers the plastic pipes to be connected, and a heating device (17) for heating at least sections of contact surfaces on the inner periphery of the sleeve body and/or on the outer periphery of the plastic pipes to establish a welded bond in the region of the contact surfaces, the ends (22) of the plastic pipes being sealed as well in a pressure -tight manner. For this purpose, the sleeve body (12) has at least one stop (16) on its interior, which stop projects inward and the radially projecting end in relation to the inner peripheral surface of the sleeve body corresponds approximately to the wall thickness of the pipe (10, 11) in the region of the end (22) to be sealed. Heating elements (18) arranged in the region of the stop (16) allow the specific introduction of heat in this region and the ends of the pipes to be welded with the stop.

IPC 8 full level

B29C 65/34 (2006.01); B29C 65/06 (2006.01); B29C 65/14 (2006.01); B29C 65/16 (2006.01); F16L 47/03 (2006.01); B29L 23/00 (2006.01)

CPC (source: EP)

B29C 65/342 (2013.01); B29C 65/3432 (2013.01); B29C 66/1222 (2013.01); B29C 66/1224 (2013.01); B29C 66/5221 (2013.01); B29C 66/52292 (2013.01); B29C 66/52294 (2013.01); B29C 66/723 (2013.01); F16L 47/03 (2013.01); B29C 65/06 (2013.01); B29C 65/14 (2013.01); B29C 65/1435 (2013.01); B29C 65/16 (2013.01); B29C 65/3468 (2013.01); B29C 65/3476 (2013.01); B29C 66/72321 (2013.01); B29C 66/7371 (2013.01); B29C 66/73711 (2013.01); B29K 2101/12 (2013.01); B29K 2305/00 (2013.01); B29K 2305/02 (2013.01); B29K 2995/005 (2013.01); B29L 2009/00 (2013.01); B29L 2009/003 (2013.01); B29L 2023/22 (2013.01)

Citation (search report)

See references of WO 2009033603A1

Citation (examination)

Designated contracting state (EPC)

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 state (EPC)

AL BA MK RS

DOCDB simple family (publication)

DE 102007042806 A1 20090312; EP 2185342 A1 20100519; WO 2009033603 A1 20090319

DOCDB simple family (application)

DE 102007042806 A 20070907; EP 08801840 A 20080904; EP 2008007240 W 20080904