Precision orifice nozzle devices for ink jet printing apparati and the process for their manufacture
US4282533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Feb 22, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A single or multi-orifice metal nozzle structure suitable for use in an ink jet printing system. The metallic nozzle member has at least one orifice extending therethrough, the orifice including a cylindrical portion, adjacent the outlet face of said nozzle, having a height ranging from 0.25 to 5 times its diameter and at least one frustoconical section divergent toward the face opposite the outlet face and communicating with the cylindrical portion. Where the metal nozzle is a multi-orifice metal nozzle, each frustoconical section communicates with a groove disposed in the face opposite the outlet face. The multi-orifice metal nozzle is prepared by grooving a metal plate with at least one groove, punching a plurality of frustoconical sections into the groove member and then forming a cylindrical portion into each frustoconical section and through the plate member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.