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. 14, 1990
Filed:
Jun. 09, 1989
Johannes Haftmann, Schwabach, DE;
Rudolf Schmeykal, Hemhofen, DE;
TA Triumph-Adler Aktiengesellschaft, Nuremberg, DE;
Abstract
In an electronically controlled typewriter, a printer or the like with an exchangeable ribbon cassette, which is provided with identifying codings and where the ribbon cassette is pivotable between a lowered position of rest and an elevated printing or operating position around the cassette base facing away from the printing area, it is provided in order to attain a simple and dependably readable coding which can discriminate between a plurality of different types of ribbon cassettes, that at a defined radial distance from the base of the ribbon cassette, which is to be inserted, a sensor is disposed at the side of the pivot path of the same, which gives off an electrical output signal in reference to a changing magnetic field. It is provided in a ribbon cassette for such a typewriter or such a printer to dispose at least one bistable magnetic element on a lateral surface of the ribbon cassette.