The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2020
Filed:
Oct. 22, 2018
Applicant:
Memjet Technology Limited, Dublin, IE;
Inventors:
Patrick McAuliffe, North Ryde, AU;
Samuel Mallinson, North Ryde, AU;
Geordie McBain, North Ryde, AU;
Assignee:
MEMJET TECHNOLOGY LIMITED, , IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/18 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); B41J 2/175 (2013.01); B41J 2/17523 (2013.01); B41J 2/17553 (2013.01); B41J 2/18 (2013.01);
Abstract
An ink tank for an ink delivery system includes: a first ink chamber having an ink inlet port and an ink outlet port; a second ink chamber positioned above the first ink chamber and having a roof defining a tortuous vent pathway open to atmosphere via a gas port; and a diffusion tube interconnecting the first and second ink chambers. The first ink chamber has a smaller volume than the second ink chamber and the diffusion tube minimizes diffusion of air from the second chamber to the first chamber.