PIPING APPARATUS FOR ELECTROFUSION WELDING USING A CONDUCTIVE PLASTIC CYLINDER

Title:

PIPING APPARATUS FOR ELECTROFUSION WELDING USING A CONDUCTIVE PLASTIC CYLINDER

Document Type and Number:

WIPO Patent Application WO/2010/002204

Kind Code:

A2

Abstract:

A piping apparatus of the present invention has a pipe joint portion which is made of synthetic resins and enables a synthetic resin pipe to be inserted into the same, wherein the piping apparatus includes a conductive plastic cylinder, an auxiliary cylinder for fusion welding, and an electrical connection terminal. The conductive plastic cylinder is interposed between the inner surface of the pipe joint portion and the synthetic resin pipe, and made of conductive plastic materials to be heated by the supplied electricity. The auxiliary cylinder for fusion welding is interposed between the conductive plastic cylinder and the synthetic resin pipe such that the auxiliary cylinder can be fusion-welded to the synthetic resin pipe by the heat of the conductive plastic cylinder, and lies in surface-contact with the conductive plastic cylinder and the synthetic resin pipe. The electrical connection terminal is arranged along the axial direction of the conductive plastic cylinder to supply electrical energy to the conductive plastic cylinder, and lies in line-contact with the conductive plastic cylinder.

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WO/2003/036149	WELDED, PLASTIC FLANGE CONNECTION
JP7133737	Electric fusion joint integrated rotary joint, unit piping and unit piping construction method
WO/2003/029710	COUPLING

Inventors:

KWAK YOU-SHIK (KR)

Application Number:

PCT/KR2009/003620

Publication Date:

January 07, 2010

Filing Date:

July 02, 2009

Export Citation:

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Assignee:

TAEIL CO LTD (KR)
KWAK YOU-SHIK (KR)

International Classes:

F16L47/03; F16L47/02; F16L47/16; F24D3/10

Foreign References:

KR100688997B1	2007-02-23
JP2000161580A	2000-06-16
JPH11230468A	1999-08-27
KR20040096757A	2004-11-17
KR200372679Y1	2005-01-14