EP 0144904 A3 19870923 - SEALING FOR THE BEARING OF A CENTRIFUGE
Title (en)
SEALING FOR THE BEARING OF A CENTRIFUGE
Publication
Application
Priority
DE 3343938 A 19831205
Abstract (en)
[origin: US4583747A] A bearing seal between the internal space of a centrifuge and its drive part utilizes, in a preferred embodiment, three similar sealing elements arranged in axial succession to each other and pressed against a protective bushing of the drive shaft in an elastic manner. The protective bushing of the drive shaft has a reduced diameter in the contact area of the sealing element closest to the internal space of the centrifuge, so that protective gas introduced into the space between the sealing elements and the subsequent sealing elements flows into the internal space of the centrifuge.
IPC 1-7
IPC 8 full level
B04B 9/12 (2006.01)
CPC (source: EP US)
B04B 9/12 (2013.01 - EP US)
Citation (search report)
- [Y] DE 1432776 A1 19691211 - BIRD MACHINE CO
- [Y] US 3164420 A 19650105 - CRAMER JR FRANK B
- [YP] GB 2130918 A 19840613 - BABCOCK WERKE AG
- [A] US 2133487 A 19381018 - JAMES SPARGO RICHARD
- [A] DE 1600502 A1 19700129 - KRAUSS MAFFEI AG
- [A] DE 724555 C 19420829 - VER KUGELLAGERFABRIKEN AG
- [A] DE 2643769 A1 19780330 - HOWALDTSWERKE DEUTSCHE WERFT
Designated contracting state (EPC)
AT BE CH FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0144904 A2 19850619; EP 0144904 A3 19870923; DE 3343938 A1 19850613; IN 161071 B 19871003; JP S60137459 A 19850722; US 4583747 A 19860422
DOCDB simple family (application)
EP 84114363 A 19841128; DE 3343938 A 19831205; IN 822CA1984 A 19841128; JP 25517284 A 19841204; US 67841784 A 19841205