Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1989-10-31
1991-11-19
Yusko, Donald J.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313405, 313406, H01J 2980
Patent
active
050668862
ABSTRACT:
A thermally respective, monometallic article is isclosed which obviates the need for bonding of dissimilar metals as in a bimetal. The thermally responsive article is formed of an alloy or a metal and has at least two portions. The two portions are characterized by different coefficients of thermal expansion over a given temperature range, the difference being sufficiently large to result in deflection of the article when heated or cooled. In the preferred form of the article, the alloy or metal is present in a first phase in one portion of the article and in a second phase in the other portion. The process for obtaining the dual phase arrangement includes subjecting one portion of an intermediate form to cold treatment, cold reduction, decarburization, or a combination thereof, depending on the material used. A cathode ray tube employing the thermally responsive article as a temperature compensating device is also disclosed.
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Frantz Earl L.
Harner Leslie L.
Carpenter Technology Corporation
Hamadi Diab
Yusko Donald J.
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