EP 0456540 B1 19930623 - DOSINGPUMP
Title (en)
DOSINGPUMP
Publication
Application
Priority
FR 9005894 A 19900511
Abstract (en)
[origin: EP0456540A1] The intake and delivery element provided in this pump comprises a diaphragm (1) made to perform a reciprocating movement opposite a valve chamber formed by a cylindrical body (10) mounted in a corresponding housing and which comprises two ducts, an intake duct and a delivery duct respectively, for the liquid to be pumped, each valve comprising a movable plug (19a, 19b) arranged in a housing provided at the outlet of the corresponding duct. On either side of the body (10) of this valve chamber two parts (21a and 21b) of moulded material are provided, each comprising on the one hand a ring (22) fitted on the corresponding edge of this body and capable of ensuring the assembly tightness of the latter in its housing, and on the other hand at least one flexible tongue (25) integrally formed with the said ring (22) and carrying a support plate (23) arranged against the plug (19a, 19b) of the corresponding valve to serve as a spring capable of returning this plug to the normal closed position after it has lifted into the open position. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 43/04 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP US)
F04B 43/04 (2013.01 - EP US); F04B 53/1042 (2013.01 - EP); F04B 53/109 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0456540 A1 19911113; EP 0456540 B1 19930623; DE 69100138 D1 19930729; DE 69100138 T2 19930930; FR 2661955 A1 19911115; FR 2661955 B1 19920724
DOCDB simple family (application)
EP 91401042 A 19910419; DE 69100138 T 19910419; FR 9005894 A 19900511