Electron gun assembly having a reinforced heater tab
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 6, 1988
Grant Date -
N/A
app pub date -
Aug 31, 1987
filing date -
Aug 31, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electron gun assembly for use in a CRT includes a pair of insulating support rods, at least one indirectly heated cathode disposed between the support rods, a heater for the cathode and an improved heater tab. The heater includes a pair of heater legs which are attached to the heater tab. Heater bead straps are provided for attaching the heater tab to the support rods. The electron gun also includes a plurality of electrodes for focusing and accelerating an electron beam generated by the cathode. The improved heater tab comprises a main body portion including a first and a second part. Each of the parts is attached to one of the heater legs. The heater tab has a pair of outwardly directed feet each of which is connected to one of the parts of the main body portion by a pair of substantially orthogonal legs extending therebetween. The heater tab includes reinforcing gussets extending between the parts of the main body portion and the legs and between the legs and the feet to maintain the rigidity of the heater tab.
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