EP 0968370 A1 20000105 - DOSING PUMP FOR DOSED LIQUID CONVEYANCE
Title (en)
DOSING PUMP FOR DOSED LIQUID CONVEYANCE
Title (de)
DOSIERPUMPE ZUM DOSIERTEN FÖRDERN VON FLÜSSIGKEITEN
Title (fr)
POMPE DE DOSAGE POUR REFOULER DES LIQUIDES DE MANIERE DOSEE
Publication
Application
Priority
- DE 19712096 A 19970322
- EP 9801458 W 19980313
Abstract (en)
[origin: US6168390B1] A dosing pump for dosed liquid conveyance that includes a suction valve built into a suction tube coming out of a suction container, a pump chamber having a displacement volume that can be modified by means of a pumping member, a pressure valve leading to a dosing tube, a deaeration device arranged on the top end of the tube and comprising a return valve and a flow-actuated deaeration and bypass valve built into a deaeration valve having response characteristics dependent upon the state of aggregation of the liquid contained therein. The flow-activated deaeration and bypass valve is open when idle, only closing when pressure is raised in the presence of liquid in the valve, and is provided with a membrane. Faulty pump operation is substantially reduced when the membrane is connected to a remote closing member which closes the deaeration tube when the membrane is moved. A return valve is arranged between the membrane and the closing member.
IPC 1-7
IPC 8 full level
F04B 53/06 (2006.01)
CPC (source: EP US)
F04B 53/06 (2013.01 - EP US)
Citation (search report)
See references of WO 9842983A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
US 6168390 B1 20010102; AT E211221 T1 20020115; DE 19712096 C1 19980402; DE 59802532 D1 20020131; EP 0968370 A1 20000105; EP 0968370 B1 20011219; NO 994581 D0 19990921; NO 994581 L 19990921; WO 9842983 A1 19981001
DOCDB simple family (application)
US 38167299 A 19991022; AT 98913716 T 19980313; DE 19712096 A 19970322; DE 59802532 T 19980313; EP 9801458 W 19980313; EP 98913716 A 19980313; NO 994581 A 19990921