Patent · US Expired

Ink-jet printer

US4730196A · kind A · utility

9Cited by

5References

1Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Johannes van Esdonk · Eindhoven, NL
Michael Doring · Hamburg, DE
Jan Roulaux · Geisingen, DE

Key dates

Filing date	Mar 26, 1987
Grant date	Mar 8, 1988
Priority date	—
Expiry date	Mar 26, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2002/14387
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The ink-jet printer contains an ink-jet nozzle (1) connected to a pressure chamber (5) which is recessed in a body (7) and is covered with a diaphragm (13, 15) on which a driving element (17) is fitted. The diaphragm contains an outer plate (13) on which the driving element (17) is fitted and an inner plate (15) provided with an oblong opening (19) which extends between the pressure chamber (5) and the ink-feed channel (11). The opening (19) forms a narrow passage with very accurately defined dimensions between the ink-feed channel (11) and the pressure chamber (5).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.