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. 03, 1987
Filed:
Oct. 17, 1985
Applicant:
Inventor:
Claude Pons, Grottaferrata, IT;
Assignee:
Videocolor, Montrouge, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315368 ; 315370 ; 358 10 ;
Abstract
An apparatus for adjusting the static convergence and/or the purity of a color television tube particularly of the kind having a perforated mask. A magnetizable ring encircles the neck of the tube. Poles are formed in this ring by means of coils displaceable in such manner that these coils and/or their cores are applied against the periphery of the magnetizable ring. The application of the coils or of their cores against the ring renders constant the relationship between the current supplied to these coils and the intensity of magnetization obtained.