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. 12, 1991
Filed:
Sep. 12, 1990
Applicant:
Inventors:
Hideo Nishigaki, Nagoya, JP;
Shigeyuki Hayashi, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271 10 ; 271107 ; 294 641 ;
Abstract
A suction type sheet feeding device which attracts an uppermost sheet of a sheet stack to a suction cup by a negative pressure, and transfers the attracted sheet to a predetermined position. For producing the negative pressure, a bellows or accordionlike enclosure is employed. In accordance with axial shrinkage and expansion of the bellows, the negative pressure is produced. The bellows is in fluid communication with the suction cup. Improvement is also made on a cleaning arrangement for cleaning the suction cup, and on the structure of the suction cup unit.