Jet nozzle plate for an ink jet printing head and method of manu

Details Jet nozzle plate for an ink jet printing head and method of manu Jet nozzle plate for an ink jet printing head and method of manu

1981-10-26

1983-12-20

Miller, Jr., George H.

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Record receiver deforming

346140R, 295274, G01D 1518

Patent

active

044220820

ABSTRACT:
A method of manufacturing a jet nozzle plate utilizes a base plate in which a bore having a diameter which is larger than the inner diameter of the ultimate jet nozzle is provided in order to form a jet nozzle, after which on the front thereof a recess is milled which concentrically surrounds the bore at a distance. Subsequently, the base plate is covered as a unit, as far as into the bore, with a layer of a chemically depositable material, whose thickness defines the inner diameter of the bore to the inner diameter of the ultimate jet nozzle. Subsequently, the front of the plate is ground down as far as the layer in the recess and is etched, the material of the base plate exposed by grinding then being removed until the layer projecting from the bore forms a freely projecting cylindrical tube which is surrounded by a trough.

REFERENCES:
patent: 4007464 (1977-02-01), Bassous et al.
patent: 4106975 (1978-08-01), Berkanblit et al.
patent: 4106976 (1978-08-01), Chiou et al.
patent: 4169008 (1979-09-01), Kurth

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