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US 2002/0000769 A1Published application
Multipole unit for a color picture tube
AssigneeMatsushita Display Devices (Germany) GmbH
InventorHeinz Lehner
Life of this patent
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Abstract
A multipole unit normally consists of a support tube, a threaded ring, a plurality of magnetic rings, a plurality of spacer rings and a spring ring. According to the present invention, the structural design of a multipole unit is simplified in that the threaded ring is modified in such a way that the spring ring becomes superfluous. In order to achieve this the threaded ring or a stop arranged on the support tube is provided with spring elements which fulfil the function of the conventional spring ring.
Claims9
A multipole unit for a color picture tube comprising:
- a support tube, a retaining ring and at least one magnetic ring,
- wherein said at least one magnetic ring being attachable to the support tube, and a spring element is provided between the retaining ring and a stop on the outer circumference of the support tube, said spring element acts in axial direction and is integrated in the stop or the retaining ring.
Dependencies are inferred from the claim text.