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:
Aug. 21, 2012
Filed:
Feb. 23, 2011
Wen-an Huang, Taipei, TW;
Chao-min Yang, Taipei, TW;
Wei-hsun Hsu, Taipei, TW;
Primax Electronics Ltd., Taipei, TW;
Abstract
An automatic document feeder includes a feeder casing, a pressing structure, a guiding notch, plural first guiding ribs and plural second guiding ribs. The pressing structure is disposed on a bottom part of the feeder casing. The guiding notch is formed in the pressing structure. The first guiding ribs are arranged downstream of the guiding notch. The second guiding ribs are arranged beside the first guiding ribs. The height of the first guiding rib is smaller than the height of the second guiding rib. The lower first guiding ribs are used for guiding a thicker paper. The higher second guiding ribs are used for guiding a thinner paper.