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:
Jan. 17, 1978
Filed:
Apr. 06, 1977
James F O'Toole, Elmhurst, IL (US);
Daryl F Osberg, Hoffman Estates, IL (US);
Addressograph-Multigraph Corporation, Cleveland, OH (US);
Abstract
Apparatus for effecting a continuous remixing of magnetic toner material for development of an electrostatic latent image wherein a plurality of magnetic developing rollers are positioned with intersecting magnetic force fields for effecting a blanket of development material extending about and between the developing rollers adjacent an electrostatic latent image bearing surface. The apparatus differs from prior practice in that two mixer rollers are positioned on obtuse angular relationship with respect to the bottom one of the development rollers, with magnetic orientation and hand of rotation such that an orbital magnetic field is created above the mixer rollers in space, lifting all magnetic toner material out of the normal sump area and causing a mixing action and metering action of the development material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile