Fountain pen equipped with a resiliency adjustment device

Coating implements with material supply – Bifurcate pointed nib tool – Including reservoir and feeder

Patent

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Details

401249, B43K 102

Patent

active

043470114

ABSTRACT:
A fountain pen in which the resiliency of the pen tip is continuously variable. The pen tip and core are surrounded at their mounting end by a pen core cover. A guide slot is formed in a guide portion of the cover in which is positioned a flexible tongue-shaped retaining member which arches from the slot towards the pen point. A knob extends from the mounting portion of the retaining member into a spiral groove in the inner surface of a rotatable cylindrical adjustment sleeve. Rotation of the sleeve moves the retaining member in and out to thereby adjust the resiliency of the tip.

REFERENCES:
patent: 881215 (1908-03-01), Hurdemann
patent: 1641511 (1927-09-01), Swasey
patent: 1661225 (1928-03-01), Kovals
patent: 1695913 (1928-12-01), Burke
patent: 1746065 (1930-02-01), Van Sant
patent: 2128456 (1938-08-01), Dusenbury
patent: 2669970 (1954-02-01), Gordon

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