A nozzle array structure for pressurized fluid jets includes a uniform deposited membrane having an array of uniform small orifices therein overlaying a planar substrate having an array of larger aperture openings therethrough with approximately the same central axes as the orifice array. The method...http://www.google.com.au/patents/US4106976?utm_source=gb-gplus-sharePatent US4106976 - Ink jet nozzle method of manufacture
