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. 15, 1994
Filed:
Feb. 23, 1993
Applicant:
Inventors:
Mitsuo Kaburagi, Hachioji, JP;
Yasuhiro Matsui, Hachioji, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271157 ; 271147 ;
Abstract
A recording sheet feeding apparatus comprises a tray frame with four vertical walls which surround an inner space, a stacking plate which is movable in the vertical direction within the inner space guided by the vertical walls, a winding roller for moving the stacking plate through a mechanical transmission which converts a rotation of the winding roller to the vertical movement of the stacking plate and a counterweight means for lifting up the stacking plate by applying a counterweight torque to the winding roller in accordance with the rotation angle thereof.