EP 0919724 A3 20000419 - Hydraulically driven double acting diaphragm pump
Title (en)
Hydraulically driven double acting diaphragm pump
Title (de)
Hydraulisch angetriebene Doppelmembranpumpe
Title (fr)
Pompe à diaphragme double avec actionnement hydraulique
Publication
Application
Priority
IT RM970739 A 19971128
Abstract (en)
[origin: EP0919724A2] A pumping device for liquids or aeriform substances of a double-acting reciprocating type, characterized in that it comprises a first and a second pumping unit provided with a separating element between a working fluid and a pumped fluid, and connected to an oil control assembly arranged to induce reciprocating motions in said separating elements of said units by means of pressurized oil so as to produce a suction phase in one unit and a delivery phase in the other unit and viceversa, in a continuous way. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 43/073 (2006.01)
CPC (source: EP US)
F04B 43/0733 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0568742 A1 19931110 - COOPER IND INC [US]
- [Y] EP 0627555 A1 19941207 - ENEA ENTE NUOVE TEC [IT]
- [X] US 4543044 A 19850924 - SIMMONS WALTER J [US]
- [X] FR 2549904 A1 19850201 - PAUL HYDRAULIQUE [FR]
- [X] US 2703055 A 19550301 - JAN VETH, et al
- [A] US 4523901 A 19850618 - SCHIPPERS HEINZ [DE], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0919724 A2 19990602; EP 0919724 A3 20000419; EP 0919724 B1 20050706; DE 69830775 D1 20050811; DE 69830775 T2 20060518; IT 1297087 B1 19990803; IT RM970739 A1 19990528
DOCDB simple family (application)
EP 98830707 A 19981125; DE 69830775 T 19981125; IT RM970739 A 19971128