EP 0120386 A1 19841003 - Method for producing a nondirectional pen.
Title (en)
Method for producing a nondirectional pen.
Title (de)
Verfahren zur Herstellung einer Feder, die in jeder Richtung schreibt.
Title (fr)
Méthode de fabrication d'un stylo permettant d'écrire dans toutes les directions.
Publication
Application
Priority
- JP 5167283 A 19830329
- JP 20916883 A 19831109
Abstract (en)
A method for producing a nondirectional pen includes the steps of drawing a solid metal rod to form a pen blank having three or more radial blade, sections (1) extending along the length of the pen blank and equally spaced angularly away from one another; cutting the pen blank into pen bodies having a predetermined length; shaping the forward end of each of the pen bodies into a substantially conical configuration; welding a pen point ball (3) to the tip of the pen body; slotting the pen body from its tip to a predetermined depth through the pen point ball to form longitudinal slots (4); and plastically deforming the pen body to close the slots.
IPC 1-7
IPC 8 full level
B43K 1/06 (2006.01); B43K 15/00 (2006.01)
CPC (source: EP)
B43K 1/06 (2013.01); B43K 15/00 (2013.01)
Citation (search report)
- [A] GB 2050254 A 19810107 - YAMANAKA S
- [A] DE 822509 C 19511126 - GEHA WERKE GMBH
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 84102682 A 19840312