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:
Feb. 13, 1990
Filed:
Mar. 30, 1989
Applicant:
Inventor:
Bernard Cherbuy, Essert, Belfort, FR;
Assignee:
Bull S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H / ;
U.S. Cl.
CPC ...
346 742 ; 346 745 ;
Abstract
The invention relates to a device for forming latent magnetic images on the recording element of a magnetographic printer. A plurality of magnetic heads (such as Y1, X1, Y2, and so forth), of different sizes are provided which can be displaced along the surface of the recording element (11) and which are excited selectively in such a manner as to form magnetized points of different sizes on this surface, which are centered along the lines (D1, D2, D3 and so forth), this excitation being effected such that the magnetized points thus formed on the surface do not overlap.