Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1979-06-27
1981-06-09
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
042727723
ABSTRACT:
A system for priming liquid ink writing instruments such as ink jet writers and capillary ink pens is disclosed. A source of ink is pressurized to force ink through the ink jet or other pen so that a small droplet is formed at the jet or pen outlet. As the drop forms at the jet or pen, it is eventually drawn away into an adjacent orifice, due to capillary action. An integrated priming pump serves both to pressurize the ink source to form the ink droplet and to apply a vacuum to the orifice to remove the ink drawn away by capillary action. A pressure release valve ensures that the ink jet or pen is not overpressurized during priming. In ink jet applications, the drop removal orifice is formed as a portion of the droplet charging ring.
REFERENCES:
patent: 3657599 (1972-04-01), Kashio
patent: 3670732 (1972-06-01), Robinson
patent: 3673601 (1972-06-01), Hertz
patent: 3805791 (1974-04-01), Seuberh
patent: 3943527 (1976-03-01), Hartmann
patent: 4123761 (1978-10-01), Kimura
Gould Inc.
Hartary Joseph W.
Sachs Edward E.
Tummino Barry L.
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