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:
Jun. 05, 1990
Filed:
Feb. 10, 1989
Yoshiyuki Horii, Kyoto, JP;
Koji Oishi, Kyoto, JP;
Horizon International, Inc., Shiga, JP;
Abstract
A paper feeding apparatus is provided wherein a paper supply shelf with a stack of paper sheets, from which the uppermost paper sheet of the stack is picked up, is guided for vertical movement and urged upwardly by the resilient force of a spring, and the upward movement of the paper supply shelf is limited by the engagement of the uppermost sheet of the stack with a stopper. The shelf is intermittently pushed down for a predetermined constant stroke by a click and ratchet arrangement. The picking up operation of the uppermost paper sheet of the stack is interlocked with the intermittently pushing down operation of the paper supply shelf, so that when the uppermost paper sheet of the stack is picked up, the paper supply shelf is synchronously lowered for a constant stroke.