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. 24, 1992
Filed:
May. 16, 1991
Applicant:
Inventors:
Masaaki Koseki, Ibaraki, JP;
Makoto Kurosawa, Ibaraki, JP;
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271157 ; 271217 ;
Abstract
A paper feed device for holding a stack of printing paper sheets, has a paper holder box, a paper support bed on which the paper sheets are adapted to be placed and an elevator mechanism for moving the paper support bed upward and downward, a sensor detects the height of the paper sheets, whereby at the time of supply of the paper sheets, the paper support bed is moved downward so that the level of the paper sheets can be at a predetermined height relative to an upper end of the paper holder box.