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:
Jul. 22, 1997
Filed:
Jul. 19, 1995
Applicant:
Inventors:
Toshirou Kurishita, Nara, JP;
Masahiro Kanezaki, Hiroshima, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271 97 ; 271 98 ; 271105 ; 271108 ;
Abstract
A sheet feeding apparatus to control the injection quantity of air to a document bundle and to allow a stable supply of paper regardless of the document size, document quantity or curling of the document. In the case where air is blown by a separation air injection unit against the front edge of a document loading unit, document-floating sensors are provided protruding upward from a sheet feeding belt. The floating sensors can be for example contact-type sensors such as microswitches to set that injection amount of air to an optimum injection amount of air when the state of the floating sensors, changes compared to their initial state.