Global Patent Index - EP 1319130 A1

EP 1319130 A1 2003-06-18 - TURBOMOLECULAR VACUUM PUMP WITH ROWS OF ROTOR BLADES AND ROWS OF STATOR BLADES

Title (en)

TURBOMOLECULAR VACUUM PUMP WITH ROWS OF ROTOR BLADES AND ROWS OF STATOR BLADES

Title (de)

TURBOMOLEKULARVAKUUMPUMPE MIT ROTORSCHAUFELREIHEN UND STATORSCHAUFELREIHEN

Title (fr)

POMPE A VIDE TURBOMOLECULAIRE COMPRENANT DES ALIGNEMENTS D'AILETTES DE ROTOR ET DES ALIGNEMENTS D'AILETTES DE STATOR

Publication

EP 1319130 A1 (DE)

Application

EP 01967249 A

Priority

  • DE 10046506 A
  • EP 0109195 W

Abstract (en)

[origin: WO0225116A1] The invention relates to a turbomolecular vacuum pump comprising rows of rotor blades (3) and rows of stator blades (4) that alternately engage with one another at varying angles of attack ( alpha ). The aim of the invention is to improve the properties of such a pump. To this end, at least a part of the blades (1 or 2) of the rows of blades (3 or 4) that are mounted on the pressure side thickens towards the rim facing the pressure side.

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

F04D 19/04; F04D 17/16; F04D 29/32

IPC 8 full level (invention and additional information)

F04D 17/16 (2006.01); F04D 19/04 (2006.01); F04D 29/32 (2006.01); F04D 29/38 (2006.01)

CPC (invention and additional information)

F04D 19/042 (2013.01); F04D 29/324 (2013.01); F04D 29/544 (2013.01)

Citation (search report)

See references of WO 0225116A1

Designated contracting state (EPC)

AT BE CH CY DE FR GB IT LI

EPO simple patent family

WO 0225116 A1 20020328; DE 10046506 A1 20020328; EP 1319130 A1 20030618; JP 2004526090 A 20040826; KR 20030032046 A 20030423; US 2004091351 A1 20040513

INPADOC legal status


2006-08-23 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060301

2004-10-13 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: LEYBOLD VACUUM GMBH

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DE FR GB IT LI

2003-06-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030221

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

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