EP 0888823 B1 20021106 - Dispenser for liquid or pasty material comprising pumping means
Title (en)
Dispenser for liquid or pasty material comprising pumping means
Title (de)
Pumpanordnung enthaltender Spender für pastöses oder flüssiges Material
Title (fr)
Distributeur pour un produit liquide ou pâteux comportant des moyens de pompage ameliorés
Publication
Application
Priority
FR 9708468 A 19970702
Abstract (en)
[origin: EP0888823A1] The dispensing head (7) consists of an axially-moving pusher (26), forming a pumping chamber (22) with an intake (14) closed by an inlet valve (16) on a piston (12) which has at least one seal lip (12a, 12b) in contact with the inner walls of the chamber. The piston is able to move between upper and lower positions, first drawing in the product and then expelling it through a dispensing valve (40), while a spring (32) returns the piston to its upper position. The piston seal lips are made from a rigid or semi-rigid material, while its inlet valve (16) comprises a membrane of a supple material. The material used for the membrane is selected, for example, from the group of thermoplastic elastomers comprising propylene/ethylene copolymers, polyether blocamides, polyvinyls, ethylene propylene diene terpolymers (EPDM), sequenced styrene butadiene polymers (SBS), sequenced styrene ethylene butadiene polymers (SEBS-SIS), thermoplastic polyurethanes, or mixtures of polypropylene with SEBS-SIS, EPDM or SBS. The membrane can be made e.g. from natural or synthetic rubber, such as nitrile or polybutadiene rubber. The piston itself is made e.g. from polypropylene, high or low density polyethene, PVC, polyacetal, ethylene vinyl acetates or mixtures of these.
IPC 1-7
IPC 8 full level
B05B 9/00 (2006.01); B05B 11/00 (2006.01); B65D 47/34 (2006.01); B65D 83/76 (2006.01)
CPC (source: EP US)
B05B 11/00446 (2018.07 - EP US); B05B 11/0072 (2013.01 - EP US); B05B 11/1001 (2023.01 - EP US); B05B 11/1004 (2023.01 - EP US); B05B 11/1067 (2023.01 - EP US); B05B 11/026 (2023.01 - EP US); B05B 11/028 (2023.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0888823 A1 19990107; EP 0888823 B1 20021106; AR 015922 A1 20010530; CA 2241341 A1 19990102; CA 2241341 C 20031104; CN 1081589 C 20020327; CN 1208711 A 19990224; DE 69809135 D1 20021212; DE 69809135 T2 20030320; ES 2186982 T3 20030516; FR 2765560 A1 19990108; FR 2765560 B1 19990813; JP 3392755 B2 20030331; JP H1176883 A 19990323; US 6070763 A 20000606
DOCDB simple family (application)
EP 98401483 A 19980617; AR P980103158 A 19980630; CA 2241341 A 19980630; CN 98117569 A 19980630; DE 69809135 T 19980617; ES 98401483 T 19980617; FR 9708468 A 19970702; JP 18529598 A 19980630; US 10828998 A 19980701