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:
Apr. 26, 1994
Filed:
Aug. 30, 1993
Tatsuhiro Taniwa, Hyogo, JP;
Tetsuya Fujimoto, Hyogo, JP;
Toshio Fukushima, Hyogo, JP;
Hirohiko Kubo, Hyogo, JP;
Wataru Miki, Hyogo, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An inexpensive large-capacity paper hopper capable of energizing a paper feed table with a constant lift force irrespective of the quantity of paper sheets remaining thereon, thereby performing stable paper feeding. To achieve such a paper hopper, a paper hopper, wherein a paper feed table is lifted or lowered being kept in a horizontal condition and paper sheets stacked on the paper feed table are sequentially sent out from the top sheet for feeding, is arranged such that the paper feed table is so suspended by a wire suspending device as to be lifted or lowered in a horizontal condition, and an elastic tensile force of extension coil springs included in a lift force exerting device is so exerted to the paper feed table that the direction in which the restoring displacement of the extension coil springs takes place becomes coincident with the direction of lifting the paper feed table.