EP 0647569 B1 19980610 - Piston for cartridges
Title (en)
Piston for cartridges
Title (de)
Kolben für Kartuschen
Title (fr)
Piston pour cartouches
Publication
Application
Priority
DE 4333811 A 19931004
Abstract (en)
[origin: EP0647569A1] The sealing of cartridges, in which a liquid is stored and from which the liquid can be conveyed in each case by means of a piston which is axially movable in the cartridge, is all the more problematic, the more highly viscous said liquid is because considerable internal pressures then occur during delivery. By means of pressure pieces (3) which are appropriately provided on the piston and are charged with the compression force (F) providing the delivery, the invention ensures that the pressing-on force of the piston against the wall of the cartridge increases with an increasing internal pressure. <IMAGE>
IPC 1-7
IPC 8 full level
B65D 83/00 (2006.01); B05C 17/005 (2006.01)
CPC (source: EP)
B05C 17/00579 (2013.01); B65D 83/0005 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0647569 A1 19950412; EP 0647569 B1 19980610; AT E167152 T1 19980615; DE 4333811 A1 19950406; DE 59406191 D1 19980716; DK 0647569 T3 19990329; ES 2119921 T3 19981016; SI 0647569 T1 19980831
DOCDB simple family (application)
EP 94105446 A 19940408; AT 94105446 T 19940408; DE 4333811 A 19931004; DE 59406191 T 19940408; DK 94105446 T 19940408; ES 94105446 T 19940408; SI 9430140 T 19940408