EP 0031092 B1 19850904 - METHOD FOR MANUFACTURING LARGE NUMBERS OF BALL-POINT PEN REFILLS
Title (en)
METHOD FOR MANUFACTURING LARGE NUMBERS OF BALL-POINT PEN REFILLS
Publication
Application
Priority
DE 2951611 A 19791221
Abstract (en)
[origin: US4587999A] A ball point pen cartridge capable of being pressurized in a pressure vessel including an end stopper having an enlarged section shaped to seal the end of a cartridge tube, a narrower section connected to the enlarged portion and extending into the cartridge, an axial tube running completely through the enlarged section and partly through the narrower section, a radial tube in the narrower section that intersects the axial tube and a flexible, gas impervious tube surrounding the narrower section to form a check valve with the radial tube.
IPC 1-7
IPC 8 full level
B43K 7/00 (2006.01); B43K 7/03 (2006.01); B43K 7/04 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0031092 A1 19810701; EP 0031092 B1 19850904; AU 542356 B2 19850221; AU 6566380 A 19810625; DE 3071063 D1 19851010; FI 70181 B 19860228; FI 70181 C 19860915; FI 803911 L 19810622; NO 152927 B 19850909; NO 152927 C 19851218; NO 803888 L 19810623; US 4587999 A 19860513
DOCDB simple family (application)
EP 80107824 A 19801211; AU 6566380 A 19801222; DE 3071063 T 19801211; FI 803911 A 19801215; NO 803888 A 19801219; US 21928480 A 19801222