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:
Nov. 07, 2017
Filed:
Sep. 25, 2014
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Masashi Hamakubo, Kobe, JP;
Akihiro Mine, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
Provided is a paper feeding roller in which recesses due to deformation are unlikely to be formed even when contact with another roller in one location continues for a comparatively long period of time, particularly as a conveying roller or the like. A paper feeding roller that has a shaft measuring 6 mm in exterior diameter pressure-welded to the outer circumferential surface under a load of 600 g in a high-temperature environment of 60° C. for 24 hours is left at room temperature for eight hours while being pressure-welded, after which the recess amount obtained using the difference (T)−T, between the thickness T(mm) of the position where the shaft was pressure-welded and the thickness T(mm) of a position where the shaft was not pressure-welded, is 0.1 mm or less.