EP 0289540 B1 19910605 - WRITING POINT OR TRACING ELEMENT
Title (en)
WRITING POINT OR TRACING ELEMENT
Publication
Application
Priority
DE 3640320 A 19861126
Abstract (en)
[origin: WO8803875A1] The housing (1') of a writing point (1) or tracing element for manual ink writing or drawing instruments or for plotter or similar automatic or mechanical tracing machines is or can be linked with a shaft (40) that contains the ink and/works as a holder and/or storage. The housing has also a compensating system and a writing body (1'') and if necessary other parts. It is provided with a supply system having in the area of the housing (1') several annular spaces (52 and 57) arranged axially one after the other and having different capillarities, their capillarity increasing one or more times in the direction of the writing body (1''). At least one annular space is conically shaped (53) and has a capillarity different from that of the writing body (1''), increasing in the direction of the latter.
IPC 1-7
IPC 8 full level
B43K 5/00 (2006.01); B43K 5/18 (2006.01); B43K 7/10 (2006.01); B43K 8/00 (2006.01); B43K 8/02 (2006.01); B43K 8/04 (2006.01); B43K 8/18 (2006.01)
CPC (source: EP US)
B43K 7/10 (2013.01 - EP US); B43K 8/00 (2013.01 - EP US); B43K 8/04 (2013.01 - EP US); B43K 8/18 (2013.01 - EP US)
Designated contracting state (EPC)
CH FR GB LI SE
DOCDB simple family (publication)
DE 3640320 C1 19871105; CN 1013223 B 19910717; CN 87107985 A 19880817; DE 8631592 U1 19871223; EP 0289540 A1 19881109; EP 0289540 B1 19910605; JP H0649396 B2 19940629; JP S63502977 A 19881102; US 4938620 A 19900703; WO 8803875 A1 19880602
DOCDB simple family (application)
DE 3640320 A 19861126; CN 87107985 A 19871125; DE 8631592 U 19861126; DE 8700484 W 19871026; EP 87906992 A 19871026; JP 50646187 A 19871026; US 23773488 A 19880726