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:
Jul. 19, 2011
Filed:
Jan. 03, 2011
Edward Ellis Esdaile-watts, Balmain, AU;
Kent Benjamen Kwan, Balmain, AU;
Nicholas Kenneth Abraham, Balmain, AU;
Christopher Hibbard, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Edward Ellis Esdaile-Watts, Balmain, AU;
Kent Benjamen Kwan, Balmain, AU;
Nicholas Kenneth Abraham, Balmain, AU;
Christopher Hibbard, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Silverbrook Research Pty Ltd, Balmain, New South Wales, AU;
Abstract
An ink supply system for an inkjet printer. The ink supply system includes an ink reservoir and a pressure-regulating chamber. The pressure-regulating chamber has an inlet port, an outlet port, an air vent open to atmosphere and a float valve for maintaining a predetermined level of ink in the chamber. The float valve is biased towards a closed position by a positive ink pressure from the ink reservoir at the inlet port.