EP 0431497 A3 19911121 - DOUBLE-ACTING SPRAYING AND/OR DOSING HAND PUMP
Title (en)
DOUBLE-ACTING SPRAYING AND/OR DOSING HAND PUMP
Publication
Application
Priority
DE 3940101 A 19891204
Abstract (en)
[origin: EP0431497A2] In a manually activated, double-acting metering and/or spray pump having a pump element which has a pump cylinder and a pump piston mounted therein, in which case the pump cylinder is provided with a downwardly directed pipe extension which forms a junction with a suction pipe, a prolongation which is formed in the axial direction of the pump and extends into the pipe extension is provided on the pump piston. A circumferential sealing lip which points in the direction of the pump cylinder and rests sealingly against the pump piston prolongation is arranged on the pipe extension.
IPC 1-7
IPC 8 full level
F04B 9/14 (2006.01); B05B 11/00 (2006.01)
CPC (source: EP US)
B05B 11/1088 (2023.01 - EP US)
Citation (search report)
- [Y] FR 2349749 A1 19771125 - EMSON RES [US]
- [Y] FR 2532010 A1 19840224 - REALEX CORP [US]
- [A] FR 1486392 A 19670623 - RUDOLF ALBERT
Designated contracting state (EPC)
AT BE DE FR IT NL
DOCDB simple family (publication)
EP 0431497 A2 19910612; EP 0431497 A3 19911121; DE 3940101 A1 19910606; JP H03182688 A 19910808; US 5110271 A 19920505
DOCDB simple family (application)
EP 90123018 A 19901130; DE 3940101 A 19891204; JP 32618090 A 19901129; US 62024690 A 19901130