Method and apparatus for recording with writing fluids and drop

Details Method and apparatus for recording with writing fluids and drop Method and apparatus for recording with writing fluids and drop

1974-07-19

1980-02-19

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

310317, 310331, 346140R, G01D 1516

Patent

active

041897340

ABSTRACT:
A recording apparatus and method is disclosed which includes a writing fluid source feeding a drop projection means which ejects a series of droplets of writing fluid from a nozzle in a discontinuous stream with sufficient velocity to traverse a substantially straight trajectory to a recording medium. The volume of each droplet is individually controlled by electrical pulses applied to the projection means from an electronic driver. A plurality of such projection means may be employed and connected to control means whereby to print or form predetermined graphical intelligence patterns on a recording medium.

REFERENCES:
patent: 3108673 (1963-10-01), Green
Kotla et al.; Bimetallic Differential-Wetting Piezoelectric Printing Device; IBM Tech. Disc. Bulletin, vol. 15, No. 5, Oct. 1972, pp. 1418-1419.

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