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. 10, 1998
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271 11 ; 271 1003 ; 271107 ; 271108 ; 27126502 ;
Abstract
A vacuum high-speed feeding apparatus equipped structure for moving suction nozzles attached to a cylindrical body towards sheet feeding rollers. The application of suction force is suspended upon detection that a drawn sheet has been caught and its conveyance has been stated by feeding rollers. This is done by detection of a leading edge of the sheet by a first sensor. The cylindrical body is restored to its home position when feeding of the sheet by a given distance is detected by a second sensor. The suction force is again applied when passage of the rear edge of the sheet through the feeding rollers is detected by the first sensor.