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. 22, 2001
Filed:
Sep. 29, 1999
Karl E. Kurz, Rochester, NY (US);
Daniel A. Chiesa, Webster, NY (US);
Tom W. Claessens, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A developer unit for developing a latent image recorded on an image receiving member with a supply of particles, the developer unit including a valve connected to a sump for storing a supply of particles received from a container for use in the developer unit, the valve including a first planar member defining a first aperture therein, wherein the first aperture includes less than one-half of the surface area of the first planar member, a second planar member defining a second aperture therein, wherein the second aperture includes less than one-half of the surface area of the second planar member, the second planar member being substantially the same size and shape as the first planar member and an attaching device, connecting the first planar member and the second planar member in planar contact so that the first planar member and the second planar member are rotatable relative to each other such that in a first rotated position the first aperture and the second aperture are in alignment with each other to form a passage through both of the planar members and in a second rotated position the passage is blocked.