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:
Oct. 01, 1991
Filed:
Feb. 06, 1991
Noriyoshi Ueda, Yokohama, JP;
Yuji Takahashi, Tokyo, JP;
Makoto Kitahara, Tokyo, JP;
Masaaki Sato, Yokohama, JP;
Naho Wakao, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An automatic document feeder includes original stacker having plural stages spaced from each other, each of which is capable of accommodating sheet originals; a support for supporting the plural stages for movement substantially along the stages; a feeder for feeding sheet originals from a selected one of the stages of the original stacker; conveyer for conveying the sheet originals from the feeder to a predetermined position; reversing device for returning the sheet originals having been placed at the predetermined position to the same selected stage; and a driver for driving the original stacker so as to bring the plural stages selectively toward the feeder.