Global Patent Index - EP 1102018 A1

EP 1102018 A1 2001-05-23 - Piping cleaning method of air conditioner, compounds used therein, and piping cleaning apparatus

Title (en)

Piping cleaning method of air conditioner, compounds used therein, and piping cleaning apparatus

Title (de)

Verfahren zur Reinigung einer Rohrleitung, Reinigungslaufteufels zum Gebrauch darin, und Rohrleitungreinigungsvorrichtung

Title (fr)

Procédé pour le nettoyage des canalisations, goupillon de nettoyage utilisé dans celui-ci, et dispositif de nettoyage des canalisations

Publication

EP 1102018 A1 (EN)

Application

EP 00124725 A

Priority

  • JP 32510299 A
  • JP 2000037848 A
  • JP 2000039566 A
  • JP 2000039567 A

Abstract (en)

When changing from an air conditioner having an existing piping (6) to a new air conditioner, the existing piping (6) can be used as it is. In this method, an air conditioner having an excellent long-term reliability can be installed. A piping cleaning method of air conditioner for removing foreign matter existing in the piping installed between an indoor unit and an outdoor unit includes (a) a step of inserting a compound (7) from an opening of the piping, (b) a step of leading a compressed gas from the opening into the piping, and conveying the compound (7) through the piping while keeping the compound (7) in contact with the inner wall of the piping, and (c) a step of removing the foreign matter existing in the piping, together with the compound (7), from the piping. <IMAGE>

IPC 1-7 (main, further and additional classification)

F25B 47/00; B08B 9/04; F28G 1/12

IPC 8 full level (invention and additional information)

B08B 9/04 (2006.01); F25B 47/00 (2006.01); F28G 1/12 (2006.01)

CPC (invention and additional information)

B08B 9/0553 (2013.01); F25B 47/00 (2013.01); F28G 1/12 (2013.01); F41B 11/87 (2013.01); F24F 2221/22 (2013.01)

Citation (search report)

Designated contracting state (EPC)

ES GR IT

EPO simple patent family

EP 1102018 A1 20010523

INPADOC legal status


2007-09-26 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20070329

2007-02-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030521

2003-07-09 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030521

2002-03-28 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-02-20 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: ES GR IT

2001-08-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010622

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): ES GR IT

2001-05-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI