Ink jet ejector utilizing check valves to prevent air ingestion

Details Ink jet ejector utilizing check valves to prevent air ingestion Ink jet ejector utilizing check valves to prevent air ingestion

1982-09-20

1985-01-29

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516

Patent

active

044969600

ABSTRACT:
A pressure pulse drop ejector which incorporates a check valve at both ends of a tubular electromechanical transducer. The transducer is used both to radially squeeze ink through a check valve to an orifice and then by elongating, expressing a droplet from the orifice. The check valves provide the means necessary for preventing air ingestion into the drop ejector.

REFERENCES:
patent: 3787882 (1974-01-01), Fillmore
patent: 3832579 (1974-08-01), Arndt
patent: 3852773 (1974-12-01), Sicking
patent: 4233610 (1980-11-01), Fischbeck et al.
patent: 4347524 (1982-08-01), Engel et al.
patent: 4353078 (1982-10-01), Lee et al.
patent: 4442443 (1984-04-01), Martner
IBM Tech. Disc. Bull. V26 No. 3A, Aug. 1983, p. 1040.

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