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:
May. 08, 2012
Filed:
Jul. 13, 2010
Takeshi Okuda, Osaka, JP;
Takeshi Okuda, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A toner cartridge includes: a toner storing portion for storing toner; a toner discharging portion having a toner discharge port; and a screw auger having a rotary shaft and a helical blade for conveying the toner in the toner storing portion to the toner discharging portion. The helical blade includes a first helical blade portion located over the toner discharge port and a second helical blade portion located in the toner storing portion. The first toner thrust face of the first helical blade portion, located on the downstream side with respect to the toner conveying direction is formed at a first inclination angle to the axial direction of the rotary shaft. The second toner thrust face of the second helical blade portion, located on the downstream side with respect to the toner conveying direction is formed at a second inclination angle to the axial direction of the rotary shaft. The first inclination angle is formed to be smaller than the second inclination angle.