3747120 is referenced by 320 patents and cites 5 patents.

An arrangement for applying droplets of a substance in liquid form to a surface. The arrangement includes a chamber which is divided into an outer chamber portion and an inner chamber portion with a channel connecting the outer and inner chamber portions. The inner chamber portion is provided with a device which produces short duration pressure increases in the fluid in the chamber. The outer chamber portion is provided with at least one intake channel for the supply of liquid from a supply container and a discharge channel through which the liquid is discharged for deposition on the surface. The discharge channel and the connecting channel are arranged so that they are axially aligned.

Title
Arrangement of writing mechanisms for writing on paper with a colored liquid
Application Number
05/216,648
Publication Number
3747120
Application Date
January 10, 1972
Publication Date
July 17, 1973
Inventor
Stemme Nils Gustaf Erick
IPC
G01d 15/16
B41J 02/145
B41J 02/14
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