EP 1435459 A2 20040707 - Reciprocating pump and vacuum pump
Title (en)
Reciprocating pump and vacuum pump
Title (de)
Kolbenpumpe und Vakuumpumpe
Title (fr)
Pompe à piston et pompe à vide
Publication
Application
Priority
- JP 2003000555 A 20030106
- JP 2003140944 A 20030519
Abstract (en)
A reciprocating pump has an action chamber, a diaphragm, a drive shaft, and a roller. The diaphragm is displaced for changing the volume of the action chamber. A groove is formed on a circumference of the drive shaft. The roller is engaged with the groove and is connected to the diaphragm. When the drive shaft is rotated, the roller is guided by the groove to reciprocate along the axis of the drive shaft. When the roller reciprocates, the diaphragm is displaced along the axis of the drive shaft. <IMAGE>
IPC 1-7
F04B 45/04; F04B 35/01; F04B 43/02; F04B 9/04; F04B 45/00; F04B 37/14; F04C 23/00; F04B 41/06
IPC 8 full level
F04B 9/02 (2006.01); F04B 9/04 (2006.01); F04B 23/08 (2006.01); F04B 35/01 (2006.01); F04B 37/14 (2006.01); F04B 37/16 (2006.01); F04B 41/06 (2006.01); F04B 43/02 (2006.01); F04B 43/04 (2006.01); F04B 45/00 (2006.01); F04B 45/04 (2006.01); F04B 45/047 (2006.01); F04C 18/12 (2006.01); F04C 23/00 (2006.01)
CPC (source: EP KR US)
F04B 9/02 (2013.01 - KR); F04B 37/14 (2013.01 - KR); F04B 41/06 (2013.01 - KR); F04B 45/047 (2013.01 - KR); F04C 18/126 (2013.01 - EP KR US); F04C 23/001 (2013.01 - EP US); F04C 2220/10 (2013.01 - EP US); F05B 2210/12 (2013.01 - KR); Y10S 417/00 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1435459 A2 20040707; EP 1435459 A3 20050907; CN 1517547 A 20040804; JP 2004263686 A 20040924; KR 20040063759 A 20040714; TW 200413639 A 20040801; US 2004131472 A1 20040708
DOCDB simple family (application)
EP 03021301 A 20030919; CN 03164839 A 20030919; JP 2003140944 A 20030519; KR 20030065258 A 20030919; TW 92125683 A 20030918; US 66591803 A 20030918