Cathode-ray tube with double tension band

Details Cathode-ray tube with double tension band Cathode-ray tube with double tension band

H - Electricity

01

J

313/35.5

H01J 29/87 (2006.01)

Patent

CA 1101038

RCA 71,247 CATHODE-RAY TUBE WITH DOUBLE TENSION BAND ABSTRACT OF THE INVENTION Cathode-ray tube has, for implosion protection, a first smooth-plastic-coated (preferably acrylic- or alkyd- coated) steel band laid directly on and encircling the glass panel, and a second smooth-plastic-coated steel band on the first band. Both bands are tensed to provide hoop compres- sion in the glass panel of the tube. In some embodiments there may be a lubricating overcoating over the plastic coating and/or a short length of tape under the seal on the first band. Also, the forward edge of the first band may lie over the mold match line or up to about 7.62mm forward of the mold match line.

297535

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