Ink pen device

Details Ink pen device Ink pen device

1976-03-11

1977-10-18

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346141, G01D 1516

Patent

active

040548830

ABSTRACT:
An ink pen has an ink tank for supplying ink to a pen nib such as a needle or capillary tube nib. The ink tank is connected to a change-over valve by way of an air pipe. The valve opens the ink tank into a positive pressurized air source for pressing ink out in good moderation through the nib during writing or drawing operation of the ink pen. On the other hand, when the ink pen is stopped to operate writing or drawing, the valve opens the ink tank in turn into a negative pressurized air source for preventing ink in the tank from leaking out or dropping down through the nib.

REFERENCES:
patent: 3083689 (1963-04-01), Hegener
patent: 3543279 (1970-11-01), Rempel
patent: 3909831 (1975-09-01), Marchio

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