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:
Jun. 05, 2001
Filed:
Sep. 27, 1999
Applicant:
Inventor:
Kevin Bokelman, La Jolla, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 3/44 ;
U.S. Cl.
CPC ...
B65H 3/44 ;
Abstract
A method and apparatus for picking the top or the bottom sheet, as desired from a stack of sheets of documents to be scanned using opposed rollers or other members which apply differing amounts of frictional force to opposite faces of the sheet to be picked. The opposed rollers each have substantially the same coefficient of friction and are selectively rotated each in the same direction of rotation but with different torques to apply differential frictional forces to pick the desired sheet from the top or the bottom of the stack.