Writing instrument tip

Details Writing instrument tip Writing instrument tip

1984-04-25

1985-11-05

Bratlie, Steven A.

Coating implements with material supply

Including tool with blade-like, pad-like, or apertured...

Apertured tool

401261, 401199, B43K 100, B43K 106

Patent

active

045510385

ABSTRACT:
A writing tip or nib for a reservoir pen is provided comprising a thin-walled hollow element (10), e.g. of metal, having an outwardly convex end wall portion (12) defining the writing surface of the tip, and several perforations (13) extending through the end wall portion for conducting ink directly to the writing surface from inside the tip. The perforations may be at least 8 in number and measure 50-200 microns across. The outer edges of the perforations are smoothly rounded at the writing surface and the perforations taper gradually inwardly from the writing surface.

REFERENCES:
patent: 2034137 (1936-03-01), Fitz-Gibbon
patent: 3467478 (1969-09-01), Webber
patent: 3610766 (1971-10-01), Herrnring
patent: 4215948 (1980-08-01), Horie
patent: 4225255 (1980-09-01), Braun et al.

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