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. 22, 1977
Filed:
Apr. 10, 1975
Friedrich Bestenreiner, Grunwald, DT;
Dieter Giglberger, Unterhaching, DT;
Gert Weidkuhn, Freiburg, DT;
AGFA-Gevaert, A.G., Leverkusen, DT;
Abstract
An electrophotographic copying machine wherein electrostatic images at the periphery of a rotary cylindrical printing base are transported below a grounded developing electrode having in its concave underside a series of shallow grooves each receiving fresh liquid toner through one or more inclined supply ports at the upstream end and each discharging spent liquid toner into one or more inclined evacuating ports at the downstream end thereof. The flow of liquid toner in the grooves is laminar, and the speed of liquid flow in the grooves equals or approximates the speed of movement of the printing base relative to the electrode. The electrode carries several distancing rolls which extend beyond its underside and the electrode is biased by springs so that the distancing rolls bear against and roll along the periphery of the printing base.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile