Title: Shadow-mask color cathode ray tube with improved mask suspension system

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.

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Inventors: Sedivy, Stanley J. (Chicago, IL, US)

Application Number: 535473
Filing Date: 1974-12-23
Publication_date: 1976-03-09
Assignee: Zenith Radio Corporation (Chicago, IL)
Primary Class(es): 313/404 313/288, 313/405
Other Classes:
US Patent Ref:

3330980	Jul, 1967	Shrader	313/405.
3497746	Feb, 1970	Duistermaat et al.	313/404.
3524973	Aug, 1970	Rigdon	307/288.
3529199	Sep, 1970	Duistermaat et al.	313/404.
3548235	Dec, 1970	Driedijk	328/178.
3796904	Mar, 1974	Yamauchi et al.	313/404.

Other Refs: 32,495

Jul, 1967	JA.

Primary Examiner: Segal, Robert
Assistant Examiner:
Attorney: Coult; John H.