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:
Apr. 08, 2008
Filed:
Nov. 04, 2003
Applicant:
James O. Beehler, Brush Prarie, WA (US);
Inventor:
James O. Beehler, Brush Prarie, WA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus providing a platen for supporting a media sheet. The platen includes a contact surface, a channel and air passage. The channel is defined in the contact surface and includes a varying cross-sectional area along at least a portion of a length of the channel. The air passage extends from the channel to deliver negative pressure to the channel. The depth of the channel at the second end is less than the depth of the channel at the first end, and the width of the channel at the first end is greater than the width of the channel at second end.