Cathode ray tube with thermally set getter spring support...

Details Cathode ray tube with thermally set getter spring support... Cathode ray tube with thermally set getter spring support...

H - Electricity

01

J

316/9, 313/35.33

H01J 29/48 (2006.01) H01J 29/94 (2006.01)

Patent

CA 1063154

ABSTRACT OF THE DISCLOSURE A cathode-ray tube comprises a getter container supported on a metal spring which is attached to and extends from an electron-gun mount assembly. At least a portion of the spring consists of an alloy, such as Nitinol (an alloy of nickel and titanium), which can be thermally set to a first shape, then cold formed to a second shape, and then restores itself to the first shape upon being heated above a predetermined transition temperature. The method includes providing a spring which has been thermally set and then cold formed, attaching the container to the spring and the spring to the mount assembly, sealing the container and the mount assembly in the tube, and then heating the spring above the predetermined transition temperature. -1-

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