Patent · US Active

High flowrate filter for inkjet printhead

US7758177B2 · kind B2 · utility

1Cited by

10References

9Claims

0Family size

Assignee

Silverbrook Research Pty Ltd · AU

Inventors

Brian Robert Brown · Chatswood, AU
Norman Micheal Berry · Sydney, AU
Garry Raymond Jackson · Sydney, AU
Paul Timothy Sharp · Sydney, AU
John Douglas Peter Morgan · Sydney, AU
Kia Silverbrook · Sydney, AU
Akira Nakazawa · Yokohama, JP
Michael John Hudson · Sydney, AU
Christopher Hibbard · Sydney, AU
Samuel George Mallinson · Sydney, AU
Paul Justin Reichl · Sydney, AU

Key dates

Filing date	Mar 21, 2007
Grant date	Jul 20, 2010
Priority date	—
Expiry date	Feb 13, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J29/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A filter for an inkjet printer that has a chamber divided into an upstream section and a downstream section by a filter membrane. An inlet conduit establishes fluid communication between an ink supply and the upstream section. An outlet conduit establishes fluid communication between the downstream section and a printhead. During use at least part of the inlet conduit is elevated relative to the filter membrane. By elevating the inlet conduit relative to the filter membrane, it acts as a bubble trap to retain bubbles that would otherwise obstruct the filter. This allows the filter size to be reduced for a more compact overall design.

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