Fountain pen with specific tubular nib

Details Fountain pen with specific tubular nib Fountain pen with specific tubular nib

1980-04-08

1981-05-26

Bratlie, Steven A.

Coating implements with material supply

Bifurcate pointed nib tool

Including reservoir and feeder

401225, 401241, 401244, 401251, B43K 106, B43K 900

Patent

active

042695287

ABSTRACT:
A tubular nib having a beak-shaped section at one end of a tube, a slit formed in the beak-shaped section, and a slit-widening inhibiting section having a radius of curvature larger than that of the tubular part of the tubular nib at least at the section across the innermost end of the slit in the beak-shaped part of the tubular nib.

REFERENCES:
patent: 1717001 (1929-06-01), Benson
patent: 1876151 (1932-09-01), Sager
patent: 2432112 (1947-12-01), Lovejoy
patent: 2474996 (1949-07-01), Wallis
patent: 2521657 (1950-09-01), Severy
patent: 3101075 (1963-08-01), Johmann
patent: 3292596 (1966-12-01), Ishida
patent: 3411854 (1968-11-01), Rosler et al.
patent: 3467476 (1969-09-01), Konig
patent: 3532436 (1970-10-01), Konig
patent: 3606556 (1971-09-01), Green et al.

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