Cathode structure for cathode ray tube
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United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
Dec 3, 1996
filing date -
Dec 5, 1995
priority date (Note) -
Expired
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Abstract
An improved cathode structure for a cathode ray tube includes a first metal tube which can receive an emission part and a heating element, a second metal tube constituting the cathode shielding, and means for retaining the first tube in position inside the second, wherein the retaining means are constituted by a single metal piece. In a preferential mode of implementation, the metal retention piece is constituted by a crown having branches extending in the direction of the axis of the crown.
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