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. 06, 1987
Filed:
Feb. 13, 1986
James D Young, Cazenovia, NY (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
An improved electrographic stylus recording apparatus wherein magnetically attractable toner powder used during imaging, but not forming a part of a toner image, is returned from one side of a stylus array to the toner powder hopper of the apparatus. The toner powder is transported around the stylus array by the use of fixed magnets disposed within two rotatable cylindrical sleeve members disposed on opposite sides of the stylus array. A further cylindrical sleeve member having a rotatable magnetic field producing means within the sleeve attracts toner powder from the cylindrical sleeve disposed on the toner powder hopper side of the stylus array for delivery to the toner powder hopper.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile