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:
Aug. 12, 1980
Filed:
Jun. 09, 1978
Karlheinz Achenbach, Kaufbeuren, DE;
Olympia Werke AG, Wilhelmshaven, DE;
Abstract
In a device for developing electrostatic charge images produced on the surface of a sheet of electrophotographic recording material in a copier which employs a magnet having on its surface a magnetic brush formed of magnetizable toner particles, the copier further presenting a recording material sheet guide path which extends at a distance from the magnetic brush, there are provided contact elements which are disposed in the guide path and which are arranged to be controlled by the leading edge of a sheet of recording material in a manner to be brought into contact with the sheet along a line which lies behind its leading edge to press the recording material against the magnetic brush, the contact elements being controlled in a manner such that they are lifted away from the sheet shortly before reaching the trailing edge thereof in order to prevent the contact elements from contacting the magnetic brush.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile