Writing device control apparatus

Details Writing device control apparatus Writing device control apparatus

1979-06-13

1982-04-13

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

137539, G01D 1516, B41J 2700

Patent

active

043250726

ABSTRACT:
An apparatus for controlling the feed of writing fluid to a writing device comprises a writing fluid supply container, a source of compressed air and a first valve in a first conduit between the source of compressed air and the supply container, the first valve being adjustable depending on the working condition of the writing device. A second valve is provided in a second conduit between the supply container and the writing device, the second valve being automatically self-regulating depending on the pressure of the writing fluid at the writing device, whereby droplet formation is prevented.

REFERENCES:
patent: 1151230 (1915-08-01), Wilson
patent: 3065886 (1962-11-01), Smalley
patent: 3185991 (1965-05-01), Gill
patent: 3371350 (1968-02-01), Sanderson
patent: 4204215 (1980-05-01), Nakarai

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