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. 16, 1993
Filed:
Jan. 07, 1991
Applicant:
Inventor:
Naoto Hirao, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
271196 ; 271276 ; 355312 ;
Abstract
A sheet paper feed apparatus has a hollow center shaft, a roller which has peripheral holes and rotates around the center shaft, and a negative pressure source communicating with the center shaft. Rotation of the roller causes the peripheral holes to successively create a suction action to adhere and feed the sheet paper. The center shaft has an opening at a position shifted by a predetermined angle in the direction of sheet feed with respect to a surface that is vertical with respect to the sheet paper feed surface and passes through a center of the center shaft.