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:
Sep. 21, 1982
Filed:
Nov. 10, 1980
Hiroshi Katakura, Hachioji, JP;
Mitsuru Nagoshi, Hachioji, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
A sheet feeding apparatus includes a pivotally disposed tray for supporting a stack of sheets thereon, a sheet feeding roller positionally fixed proximate the leading edge of the uppermost sheet of a stack on the tray, a biasing member for urging the tray in opposition to the fixed feeding roller so that the uppermost sheet of the stack is pressed into frictional contact with the roller, and a wedge-shaped supplemental displacement member of a relatively light specific gravity material disposed intermediate the tray and a sheet stack supported thereon to displace the tray with respect to the feeding roller by an amount greater than that displacement otherwise imparted to the tray by sheets stacked thereon so as to increase the frictional feeding force with which the uppermost sheet is pressed against the feeding roller by the biasing member and thereby facilitate feeding of sheets having properties that might otherwise interfere with normal feeding from the tray.