Shadow-mask color cathode ray tube with improved mask suspension

Details Shadow-mask color cathode ray tube with improved mask suspension Shadow-mask color cathode ray tube with improved mask suspension

1974-12-23

1976-03-09

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313405, 313288, H01J 2902, H01J 2908, H01J 3120

Patent

active

039433994

ABSTRACT:
This disclosure depicts a color cathode ray tube of the shadow mask type, and especially depicts suspension systems for detachably supporting a rectangular, non-self-rigid, torsionally flexible shadow mask on the envelope of a color cathode ray tube. Each suspension system illustrated includes four suspension devices, one at each corner of a faceplate portion of the envelope on a diagonal thereof, for mechanically coupling the shadow mask to the envelope. Each device comprises envelope-mounted means and mask-mounted means for retentively but detachably engaging the envelope-mounted means to cause the mask to assume a fixed position in space relative to the tube of the faceplate. In the preferred embodiment illustrated, the envelope-mounted means and the mask-mounted means mate with a snap-in, self-guiding, self-locating engagement such that the mask may be quickly and precisely mounted on the envelope by a push-click insertion operation.

REFERENCES:
patent: 3330980 (1967-07-01), Shrader
patent: 3497746 (1970-02-01), Duistermaat et al.
patent: 3524973 (1970-08-01), Rigdon
patent: 3529199 (1970-09-01), Duistermaat et al.
patent: 3548235 (1970-12-01), Driedijk
patent: 3796904 (1974-03-01), Yamauchi et al.

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