EP 1997921 A3 20091028 - Gasket
Title (en)
Gasket
Title (de)
Dichtring
Title (fr)
Bague d'étanchéité
Publication
Application
Priority
DE 102007025758 A 20070601
Abstract (en)
[origin: EP1997921A2] The sealing ring has a base material based on iron or nickel based alloy and, which is treated with boron. The base material based on iron is partly austenitic, or partly ferritic, or partly pearlitic, bainitic or martensitic. An independent claim is also included for a method for manufacturing a sealing ring, which involves utilizing borating firm, liquid, particularly paste-like or gaseous boron donors, and sintering or casting of the base material.
IPC 8 full level
C22C 19/00 (2006.01); C22C 19/05 (2006.01); C22C 38/00 (2006.01); C22C 38/10 (2006.01); C22C 38/18 (2006.01); C22C 38/40 (2006.01); C22C 38/44 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP)
C22C 19/00 (2013.01); C22C 19/051 (2013.01); C22C 19/055 (2013.01); C22C 38/00 (2013.01); C22C 38/08 (2013.01); C22C 38/105 (2013.01); C22C 38/18 (2013.01); C22C 38/40 (2013.01); C22C 38/44 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01)
Citation (search report)
- [X] US 4934254 A 19900619 - CLARK EUGENE V [US], et al
- [X] WO 8304293 A1 19831208 - CLARK EUGENE V, et al
- [X] US 4022481 A 19770510 - LONG JOHN V, et al
- [X] US 3916054 A 19751028 - LONG JOHN V, et al
- [PX] GB 2438522 A 20071128 - DYNA DRILL TECHNOLOGIES INC [US]
- [X] DE 4410094 A1 19950928 - SCHIPPER GUENTER [DE]
- [A] WO 2004005565 A1 20040115 - HITACHI METALS LTD [JP], et al
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)
EP 1997921 A2 20081203; EP 1997921 A3 20091028; DE 102007025758 A1 20081204; JP 2008304059 A 20081218
DOCDB simple family (application)
EP 08156343 A 20080516; DE 102007025758 A 20070601; JP 2008138913 A 20080528