Global Patent Index - EP 1240448 A1

EP 1240448 A1 2002-09-18 - SEAL ASSEMBLY

Title (en)

SEAL ASSEMBLY

Title (de)

DICHTUNGSEINRICHTUNG

Title (fr)

ENSEMBLE JOINT D'ETANCHEITE

Publication

EP 1240448 A1 (EN)

Application

EP 00983612 A

Priority

  • SE 0002367 W
  • SE 9904464 A
  • SE 9904463 A

Abstract (en)

[origin: WO0142690A1] The present invention relates to a seal assembly (1) for sealing the gap between two relatively moveable parts (26, 27) to prevent fluid leakage from a high pressure side to a low pressure side. Such a seal assembly generally comprises at least one ring seal (2, 3) having a first peripheral surface (8, 9) supported by one (26) of said parts. The at least one seal ring also comprises a second peripheral surface (10, 11) for sealing against said other part (27). According to the invention the seal assembly comprises a primary seal (2) facing the high pressure side and consisting of at least one metal ring (4) having several small peripheral sealing lips (6) provided at its second peripheral surface (10), for performing an initial sealing function and for simultaneously providing a pressure drop thereacross. In addition it comprises a secondary seal (4) provided behind the primary seal, with regard to the high pressure side, and consisting of at least one metal ring (5) being provided with a recess (13) in its second peripheral surface (11), and a first soft sealing ring (14) received in the recess.

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

F16J 15/26

IPC 8 full level (invention and additional information)

F15B 3/00 (2006.01)

CPC (invention and additional information)

F15B 3/00 (2013.01)

Citation (search report)

See references of WO 0142690A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0142690 A1 20010614; AU 2034401 A 20010618; EP 1240448 A1 20020918

INPADOC legal status


2005-08-31 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050222

2004-03-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040202

2003-04-09 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: HYFOTEC SWEDEN AB

2002-11-06 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: INDUSTRIELLT UTVECKLINGSCENTER DALARNA AB

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020708

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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