Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1980-06-18
1983-05-10
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
043832644
ABSTRACT:
A device for forming and expelling a controlled quantity of liquid upon demand, such as an ink drop generating device, having a transducer deforming element for controlled deforming in response to an electrical signal, an orifice housing containing an orifice chamber which has an orifice opening at its front side and a relatively larger opening at its back side, the larger chamber opening being in direct communication with a liquid reservoir, the transducer deforming element and the orifice housing being closely positioned to provide direct interaction between the deforming element and the orifice chamber upon receipt of an electrical signal, the interaction causing generation of a liquid drop or other controlled quantity of liquid. Preferably the geometry of the orifice chamber and the deforming element are matched and the deforming element is oriented such that it may make contact with the orifice chamber when it deforms, which contact contributes to the generation of the controlled liquid quantity, or drop which is expelled from the orifice.
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Cross, R. G.; Ribbonless Ink Printer; IBM TDB vol. 16, No. 1, Jun. 1973, p. 310.
Brownlow et al.; Ink on Demand Using Silicon Nozzles; IBM TDB, vol. 19, No. 6, Nov. 1976, pp. 2255-2256.
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Exxon Research and Engineering Co.
Hartary Joseph W.
Heist Dale
Norris Norman L.
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