Patent · US Expired

Ink supply system for piezoelectrically operated printing jets

US4149172A · kind A · utility

60Cited by

7References

1Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Joachim Heinzl · Munich, DE
Erich Kattner · Munich, DE
Guenther Rosenstock · Munich, DE

Key dates

Filing date	Dec 9, 1975
Grant date	Apr 10, 1979
Priority date	—
Expiry date	Dec 9, 1995

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/175
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Ink supply system for supplying a stream of ink from an ink reservoir to a piezoelectrically operated printing jet of an ink jet printer. The system includes a conduit interconnecting the reservoir to the printing jet in which is mounted a capillary filter. The conduit includes an elastic portion on the downstream side of the capillary filter and a ventable air receiver on the upstream side thereof.

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