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:
Nov. 06, 2001
Filed:
Jul. 12, 1999
Applicant:
Inventor:
Joe R. Pietrzyk, San Diego, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/05 ;
U.S. Cl.
CPC ...
B41J 2/05 ;
Abstract
The present invention provides an ink feed architecture for an inkjet printhead that extends the life of firing resistors. Two separate ink channels lead to each firing chamber. The ink channels are asymmetric with respect to the firing chamber, causing an asymmetric flow pattern that pushes the collapsing drive bubble and distributes the associated high pressure spikes over the resistor surface. This increases the life of the resistors.
Pietrzyk, Joe. (2001). Long life printhead architecture (U.S. Patent No. 6312112). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6312112
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile