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:
Feb. 02, 1993
Filed:
Sep. 23, 1991
Applicant:
Inventors:
Toru Morooka, Yamato-Koriyama, JP;
Yuji Okamoto, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271-31 ; 271258 ; 271265 ;
Abstract
A sensor (SEN6a) is provided for detecting a presence of a document sheet at a specified position during a transit path of document sheets supplied. According to detection output from this sensor (SEN6a), a continuous presence time of a document sheet is obtained, and if the continuous presence time obtained is longer than the continuous document presence time obtained last time, this is regarded as an indication of a multiple feed of document sheets, and the feeding of document sheets is stopped.