Claims
- 1. A color television picture tube comprising:
- (I)
- (A) a glass cone portion;
- (B) a glass window portion;
- (C) a metal screening cone located within the volume defined by the glass cone portion and the glass screen portion, at least a major part of the metal screening cone being distanced away from the glass cone portion; and
- (D) an evaporable getter device comprising two parallel linear channel holders having U-shaped cross-sections, each containing a source of evaporable getter material, each linear holder having an inner facing wall, two side walls and two end walls, the outer portion forming the opening of the cross-sectional U-shape, linear holders being joined to each other by metal strips connecting the ends of each of the linear holders to form a closed loop substantially lying in a single plane, such that the openings of the linear holders are facing substantially outwards and away from each other, said metal connecting strips further comprising support legs for mounting the getter device;
- (II) with the provisos that (a) the evaporable getter device is mounted on the metal screening cone by means of the support legs at a point between the metal screening cone and the glass cone portion, and (b) the evaporable getter device is oriented in such a way as to evaporate the getter material in a direction substantially parallel to a line formed by the nearest intersection of the glass cone portion and the glass window portion.
- 2. The color television picture tube of claim 1 wherein the side walls of each linear holder are inwardly bent at their extremities to close partially the getter material vapor openings of the linear holders.
- 3. The color television picture tube of claim 1 wherein each linear holder itself comprises a multiple source of getter material vapors comprising two substantially identical parallel linear channels each having a trapezoidal-shaped cross section, abutting each other along one side wall, the inner facing walls being the top of the trapezoid and the opening comprising a slit running the length of the channel in the outwardly facing side, said side being the base of the trapezoid.
Priority Claims (1)
Number |
Date |
Country |
Kind |
23184 A/76 |
May 1976 |
ITX |
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Parent Case Info
This application is filled under the provisions of 37 CFR 1.60 based on co-pending Application No. 774,426 filed on Mar. 4, 1977, now U.S. Pat. No. 4,134,041.
US Referenced Citations (3)
Foreign Referenced Citations (2)
Number |
Date |
Country |
799291 |
Aug 1958 |
GBX |
1226728 |
Mar 1971 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
774426 |
Mar 1977 |
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