EP 0164020 A1 19851211 - Peristaltic pump.
Title (en)
Peristaltic pump.
Title (de)
Peristaltikpumpe.
Title (fr)
Pompe péristaltique.
Publication
Application
Priority
US 61433184 A 19840525
Abstract (en)
To increase precision of flow in multiple channels of a peristaltic pump, a plurality of spring biased cassettes (18A, 18B, 18C) are mounted to cooperate with a spool (38) having a plurality of elongated rollers (36A-36C) which orbit about its center so that each elongated roller in succession compresses a plurality of flexible tubes (20A-20C) in the channels against corresponding cam surfaces (108, 110) in the cassettes (18A-18C) spaced from the rollers (36A-36C) by surfaces (107) of the cassettes which are in contact with the rollers (36A-C) In each cassette (18A-C), the cam (108, 110) is mounted between side plates (52-54) against which the rollers (36A-36C) roll, which are spring biased against the rollers (36A-36C) and hinged at a center location to provide precision determined only by the precision of the cam (108, 110) to side plate edge dimension. The cam is shaped to reduce pulses during roller lift-off from the cam surface (108, 110) to provide for pulsefree flow.
IPC 1-7
IPC 8 full level
F04B 43/12 (2006.01)
CPC (source: EP)
F04B 43/1292 (2013.01)
Citation (search report)
- [X] DD 100309 A1 19730912
- [X] FR 2336571 A1 19770722 - MILES LAB [US]
- [A] GB 2076476 A 19811202 - WARNER LAMBERT UK LTD
- [A] WO 8200498 A1 19820218 - LIST H [AT], et al
- [AD] US 3366071 A 19680130 - HANS DUTLER
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0164020 A1 19851211; EP 0164020 B1 19890816; DE 3572381 D1 19890921
DOCDB simple family (application)
EP 85106263 A 19850522; DE 3572381 T 19850522