Static convergence device for television picture tube
AssigneeBangor Electronics Co.
InventorAlbert M. Anthony
Life of this patent
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Abstract
A static conversion device for a color television picture tube having a base unit, a central unit and a cap unit mounted in a stack about the neck of the picture tube. Each of the units centers a pair of magnetic rings, and the rings are mounted between outwardly extending tabs of adjacent units. The assembly is maintained in position on the neck of the picture tube by a plurality of pairs of fingers extending from the units to abut the neck of the picture tube.
Claims18
A device for mounting a pair of magnet rings on a substantially cylindrical neck comprising a cylindrical collar having a central axis adapted to be disposed coaxial with the neck and a diameter greater than the diameter of the cylindrical neck, a first plurality of elongated fingers mounted at one end thereof on the collar and extending toward the central axis, and a second plurality of elongated fingers mounted at one end thereof on the collar and extending toward the central axis, each of the fingers having an end opposite the collar with an elongated straight edge parallel to the central axis and disposed on a cylindrical surface of revolution with a diameter less than the diameter of the cylindrical neck, and the fingers of the first and second pluralities intersecting the cylindrical surface of revolution at supplementary acute angles, a pair of flat cylindrical rings of magnetic material provided with a central cylindrical opening of a diameter greater than the outer diameter of the cylindrical collar, and means for mounting the rings in abuttment with each other with the openings of the rings disposed co-axially about the collar.
A device for mounting a pair of magnet rings on a substantially cylindrical neck comprising a cylindrical sleeve having a central axis adapted to be disposed coaxial with the neck and a diameter greater than the diameter of the cylindrical neck and opposite ends normal to the central axis, said sleeve having a flat flange extending outwardly therefrom at one end thereof, a pair of flat cylindrical rings of magnetic material provided with central cylindrical openings of a diameter greater than the outer diameter of the cylindrical sleeve disposed about the sleeve, one of the rings abutting the flange and the other abutting the one ring, said sleeve having a plurality of spaced teeth extending outwardly from the end thereof opposite the flange, each of the teeth abutting the other ring, the pair of rings being wedged between the flange and the teeth, and means for mounting the sleeve co-axially about the neck.
A device for mounting a pair of magnet rings on a substantially cylindrical neck comprising a cylindrical sleeve having a central axis adapted to be disposed coaxial with the neck and a diameter greater than the diameter of the cylindrical neck and opposite ends normal to the central axis, said sleeve having a flat flange extending outwardly therefrom at one end thereof, a pair of flat cylindrical rings of magnetic material provided with central cylindrical openings of a diameter greater than the outer diameter of the cylindrical sleeve disposed about the sleeve, one of the rings abutting the flange and the other abutting the one ring, said sleeve having a plurality of spaced teeth extending outwardly from the end thereof opposite the flange, each of the teeth abutting the other ring, the pair of rings being wedged between the flange and the teeth, the sleeve being provided with a slot parallel to the central axis thereof on each side of each tooth, each slot extending between ends of the sleeve and into the flange, the flange being provided with a plurality of apertures equal in number to the teeth, each aperture being disposed between two adjacent slots and confronting a tooth, the flange being provided with a plurality of U-shaped slots, each U-shaped slot having a central portion spaced from the sleeve and side portions extending therefrom toward the sleeve, each U-shaped slot forming a pick anchored on the flange adjacent to the sleeve and extending toward the perimeter of the sleeve, and each pick having a bend adjacent to the sleeve toward the end of the sleeve opposite the flange, the picks abutting the one magnetic ring, and means for mounting the sleeve co-axially about the neck.
Dependencies are inferred from the claim text.