Electrolytic pen

Details Electrolytic pen Electrolytic pen

1974-11-25

1976-04-20

Kaplan, G. L.

Recorders

Markers and/or driving means therefor

With ink supply to marker

204224R, 346 74E, G01D 1516, G01D 1518, G01D 1506, C25D 1700

Patent

active

039523144

ABSTRACT:
A display and/or marking pen for use with an electrolytic type ink effective when subjected to an electric current to change color. The improved pen has activating electrodes strategically disposed adjacent the ink discharge orifice designed to create the desired color changing current as the ink passes therethrough. In one embodiment, the pen consists of an electrode pair arranged in concentric fashion while in a second embodiment, a multiple electrode arrangement provides a pen having multiple stylii.

REFERENCES:
patent: 1550048 (1925-08-01), Ruben
patent: 1796584 (1931-03-01), Volmer
patent: 2071967 (1937-02-01), Bungner
patent: 3270637 (1966-09-01), Clark
patent: 3308475 (1967-03-01), Bean

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