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:
Nov. 04, 2008
Filed:
Oct. 02, 2006
Kazuhide Sano, Minamikoma-gun, JP;
Syunichi Hirose, Minami-Alps, JP;
Kazuhide Sano, Minamikoma-gun, JP;
Syunichi Hirose, Minami-Alps, JP;
Nisca Corporation, Minamikoma-Gun, Yamanashi-Ken, JP;
Abstract
A sheet feeding apparatus includes a sheet size recognition device for recognizing length of a sheet placed on a stacker in a transport direction, an ultrasonic double feed detection device arranged between a first transport device and a second transport device for detecting a double feed of sheets, and a transport length detection device for detecting a transport length of the sheet transported by the first and second transport devices from a leading edge of the sheet to a trailing edge of the sheet. A comparison device compares the length of the sheet recognized by the sheet size recognition device and the transport length of the sheet detected by the transport length detection device. A judgment device judges the double feed of the sheets based on at least one of a comparison result from the comparison device and a detection result from the double feed detection device.