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. 20, 2004
Filed:
Jun. 13, 2001
Applicant:
Inventor:
Glenn Gaarder, Ramona, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 3/52 ;
U.S. Cl.
CPC ...
B65H 3/52 ;
Abstract
A roller assembly for a single sheet feeder includes a stack damper which is rotatably suspended on or near a pre-feed roller axis to prevent buckling of thin media sheets and to impart a slight bend to thick media sheets during sheet movement by the pre-feed roller. The stack damper has a surface which extends from a location proximate the pre-feed roller parallel to the surface of a stack of media from which individual sheets are to be removed.