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:
Dec. 09, 2014
Filed:
Nov. 29, 2011
Richard A. Murray, San Diego, CA (US);
Richard A. Murray, San Diego, CA (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method of making an ink cartridge by forming an ink chamber, an air accumulation chamber, and a cap including a vent hole is disclosed. The cap is affixed at a first end of the air accumulation chamber and a one way valve is disposed at the vent hole for preventing gas from entering the air accumulation chamber through the vent hole when a pressure in the air accumulation chamber is less than a cracking pressure of the one-way valve. A neck region narrower than the ink chamber and the air accumulation chamber is formed for fluidically connecting the ink chamber and the air accumulation chamber. A mass is placed within the air accumulation chamber, the mass having a dimension smaller than an interior dimension of the air accumulation chamber such that the mass is movable between the first end and a second end of the air accumulation chamber.