Patent · US Expired

Nozzle plate for ink jet print head

US4343013A · kind A · utility

35Cited by

4References

2Claims

0Family size

Assignee

NCR Corporation · US

Inventors

Leonhard Bader · Stadtbergen, DE
Frank Giessner · Augsburg, DE
Friedrich B. Rombach · Augsburg, DE
Hermann Winter · Marl, DE

Key dates

Filing date	Oct 14, 1980
Grant date	Aug 3, 1982
Priority date	—
Expiry date	Oct 14, 2000

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/1606
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The nozzle plate of an ink jet print head is made of glass to provide a desirable wetting property for a stable meniscus of the ink column and the front surface of the plate is coated with a non-wetting material such as metal or plastic to prevent ink deposits at the front surface around the orifice. Any ink deposits at such front surface would adversely affect the ejection of ink droplets.

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