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:
Sep. 09, 2003
Filed:
May. 09, 2002
Applicant:
Inventors:
Assignee:
UMAX Data Systems, Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 5/06 ;
U.S. Cl.
CPC ...
B65H 5/06 ;
Abstract
A friction plate coupling structure inside an automatic document feeder. The friction contact surface of the friction plates is designed to have a slant surface resembling a frustum so that overall contact area is increased and stability of the coupling between the friction plates is improved.