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:
May. 16, 1989
Filed:
May. 06, 1988
Applicant:
Inventors:
Assignee:
Bull S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 742 ; 346 746 ;
Abstract
The invention relates to a powdered substance for lubricating the recording carrier of a magnetic printer. This solid substance is in the form of a powder comprising groups (G) of particles, each of these groups being formed by one particle (30) of lubricating insulating material surrounded on its periphery by particles (31) of conductive carbon, the number of the latter particles being sufficient to cover the entirety of the external surface of this particle of lubricating insulating material. The invention is applicable to magnetography.