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:
Mar. 21, 1989
Filed:
Mar. 10, 1988
Robert J Tannascoli, Webster, NY (US);
Carl W Holland, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A developer transport apparatus includes a rotatable auger to transport developer along its length from a developer entry to a developer delivery end and transport means at the delivery end and under the rotatable transport auger to transport developer away from the delivery end with the toner auger being contained within a stationary cylindrical containment tube extending the length of the auger, the tube being cut away at the bottom portion of the delivery end of the auger to permit toner to be delivered to the transport. The developer auger has an antibridging device at its delivery end which is a flexible paddle wheel mounted through the shaft of the auger and rotatable therewith. The flexible paddle wheel has a length grater than the diameter of the containment tube whereby upon rotation of the auger the paddle wheel is first deformed by the top portion of the containment tube at the delivery end of the auger with the storage of energy therein and the subsequent release of energy when the deformed paddle is rotated through the cut away portion of the containment tube. In a preferred embodiment the paddle wheel is made of two thin solid planar members in abutment and offset axially to each other such that on rotation the leading edge is the longer of the two members.