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:
Mar. 03, 1992
Filed:
Jul. 31, 1990
Kozo Takahashi, Nara, JP;
Tamami Nagasawa, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A stack of sheets contained in a containing member is loosened at the downstream edges in the feeding direction by air injected from an air injecting device, and fed one by one seriatim from the sheet on top in a predetermined feeding direction by a vacuum suction feeder disposed above the containing member. At this time, an upwardly directed impact is applied to the downstream edges in the feeding direction of the sheets from an impact generating device, thereby improving looseness of the downstream edge faces in the feeding direction by the air. The sheet fed from the containing member is returned to the bottom of the stack of sheets on the containig member. At this time, a claw formed on a feed roller pushes up the upstream edges in the returning direction of the sheet so as to force the sheet completely into the containing member.