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  Bibliographic data     Description     Claims     Mosaics     Original document     INPADOC LEGAL status  
Patent number: DE2042079
Publication date: 1971-03-11
Applicant: PHILIPS NV
- international: H01J31/00
- european:
Application number: DE19702042079 19700825
Priority number(s): NL19690013617 19690906
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Also published as:
  NL6913617 (A)  
  GB1260077 (A)  
  FR2060954 (A5)  
  ES383405 (A)  
  CH514229 (A5)  
  more >>  

Abstract not available for DE2042079
Abstract of correspondent: GB1260077
1,260,077. Colour television tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUS- TRIES Ltd. 3 Sept., 1970 [6 Sept., 1969], No. 42246/70. Heading H1D. In a colour television tube wherein a shadow mask is supported in a faceplate by means of resilient members attached to the mask and provided with apertures which engage studs on the faceplate, the greater thermal expansion and hardness of the members may cause them to deform the studs when they shrink on cooling from the high temperatures employed in pro- cessing the tube; the rigidity caused by this effect is avoided by making the apertures in the resilient members circular and the studs tri- angular with rounded apices. The resilient members may be bimetal strips, the strips being joined along their narrow edges and the aperture being provided in the strip having the larger thermal expansion coefficient. The studs are conical and the angle of the cone should prefer- ably be increased from the usual 15 to 20 degrees. As a modification the studs may be secured to the resilient members and the apertures pro - vided in the envelope or in a member secured to the envelope.

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