Method and apparatus for forming a compound liquid jet particula

Details Method and apparatus for forming a compound liquid jet particula Method and apparatus for forming a compound liquid jet particula

1978-03-06

1980-04-01

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

118325, 239 10, 239426, 427426, 346 75, G01D 1518

Patent

active

041964373

ABSTRACT:
Method and apparatus for providing a compound liquid jet of fine droplets, particularly suitable for ink-jet recording systems. A primary stream is formed by ejecting under pressure a primary liquid from a nozzle and then causing the primary stream to traverse a thin layer of a secondary fluid to form a compound liquid stream which breaks up to form a compound jet of fine droplets each containing both the primary liquid and the secondary fluid. Since only the primary liquid passes through the nozzle, it may be chosen to minimize, or even eliminate, nozzle clogging and other difficulties associated with the use of most inks in ink-jet systems. The secondary fluid may contain fine particulate material, e.g., pigments, and it is used to contribute color or other physical properties to the compound jet.

REFERENCES:
patent: 2512743 (1950-06-01), Hansell
patent: 2925312 (1960-02-01), Hollmann
patent: 3211377 (1965-10-01), Brenner
patent: 3380584 (1968-04-01), Fulwyler
patent: 3710933 (1973-01-01), Fulwyler et al.
patent: 3737914 (1973-06-01), Hertz
patent: 3924974 (1975-12-01), Fischbeck
patent: 4106032 (1978-08-01), Miura
Miller, Norman A., Ink Jet Density Enhancement; Xerox Discosure Journal, vol. 2, No. 1, Jan./Feb. 1977.

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