Ball point pen with two cartridges

Coating implements with material supply – Combined

Patent

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Details

401 30, 401 32, 401 33, B43K 2900, B43K 2712, B43K 2412, B43K 2414

Patent

active

049482858

ABSTRACT:
A writing instrument in the form of a ball pen has two cartridges capable of being alternately moved into the writing position by rotating the barrel. A provision is made for a space in the top part of the barrel for accommodating or receiving various accessory devices such as stamping mechanisms, marker pens or the like. The invention includes a guide tube housed within the barrel and having two longitudinal slots therein. Two slides having small tubes for receiving the writing cartridges, are movable back and forth on offset guide rails on the guide tube. The slides are forced into contact with a curve switching cam surface of a switching casing by springs. By rotating the switching casing, the one or other slide and thus the small tubes with the writing cartridges inserted therein are alternately pushed toward the bottom of the writing instrument and into the writing position.

REFERENCES:
patent: 641230 (1900-01-01), Rice et al.
patent: 2071510 (1937-02-01), Durrler
patent: 2170761 (1939-08-01), Maucher
patent: 2826173 (1958-03-01), Grossweiler et al.
patent: 2849983 (1958-09-01), Gossweiler et al.
patent: 3237605 (1966-03-01), Bourbon
patent: 3266465 (1966-08-01), Ganz
patent: 4227822 (1980-10-01), Kokubu
patent: 4268183 (1981-05-01), Sekiguchi

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