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:
Sep. 14, 2010
Filed:
Dec. 18, 2006
John Douglas Peter Morgan, Balmain, AU;
Miao Wang, Balmain, AU;
Patrick John Mcauliffe, Balmain, AU;
David John Worboys, Balmain, AU;
Kia Silverbrook, Balmain, AU;
John Douglas Peter Morgan, Balmain, AU;
Miao Wang, Balmain, AU;
Patrick John McAuliffe, Balmain, AU;
David John Worboys, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Silverbrook Research Pty Ltd, Balmain, New South Wales, AU;
Abstract
A method of regulating a hydrostatic pressure of ink supplied to an inkjet printhead is provided. The method comprises withdrawing a volume of ink from an ink chamber and simultaneously bubbling air bubbles into the chamber via a bubble outlet to balance the withdrawn volume of ink. Each air bubble is defined by an air cavity trapped inside a film or a body of ink. The bubble outlet is dimensioned to control a Laplace pressure of the air bubbles, thereby regulating a hydrostatic pressure of the ink.