Self-converging deflection units for color display tubes of different screen formats
Patent 4272727 Issued on June 9, 1981. Estimated Expiration Date: 
August 21, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 21, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDeflection yoke for use with in-line cathode ray tubes Deflection device for use with in-line type color cathode ray tubes Patent #: 4122422 InventorsApplicationNo. 06/068371 filed on 08/21/1979US Classes:335/213, With coil structure335/210Electron or ion beam deflecting typeExaminersPrimary: Harris, GeorgeAttorney, Agent or FirmInternational ClassH01J 29/76 (20060101)Foreign Application Priority Data1978-08-25 NLAbstractA method of composing self-converging deflection units for color display tubes of the in-line type having the same deflection angles and neck diameters but different screen formats, in which for all screen formats one and the same design of the deflection unit is used, which deflection unit is self-converging for a color display tube of a given screen format and is made self-converging for a color display tube of a different screen format by varying the effective lengths of the line and field deflection coils constructed as saddle-shaped coils of the shell type in opposite senses with the position of their front ends remaining the same. | |
