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. 12, 1992
Filed:
Jun. 29, 1990
Toshiaki Miyasaka, Tokyo, JP;
Mutoh Industries Ltd., Tokyo, JP;
Abstract
A waste toner conveyer of an image forming apparatus has a screw for conveying powdery toner along a toner conveying passage defined in the conveyer. The screw includes a plurality of strip-like spring members which are reciprocally moved along a longitudinal direction of the waste toner conveyer. The screw is secured to a rotary shaft. A pin fixed to the shaft rotates and slides along an irregular surface of a cam so as to reciprocate the screw horizontally during the rotation of the shaft. Accordingly, waste toner is shaken from the screw by an extension and retraction of the screw along the longitudinal axis so that such waste toner can fall through a waste toner outlet.