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OwnerCarlo Tulli, Pedro Cosma +1inventors
InventorsCarlo Tulli, Pedro Cosma, Paolo Ginesti
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Cathode ray tube comprising a colour selection frame/mask assembly suspended within the front face of the said tube by suspension means composed of a first metal member comprising a central elastic part, a first extremity portion comprising a aperture designed to fit around a pin joined to the front face of the tube, and a second extremity portion attached by welding directly or indirectly to the frame the welding being carried out on the surface of the second extremity portion in at least two separate zones arranged in such a manner so as to form an acute angle Θ with the hole of the first extremity portion greater than 10°. This support structure enables the tube to be made less sensitive to mechanical vibrations.
1/ Colour cathode ray tube comprising:
2/ Cathode ray tube according to claim 1, wherein the central part of the said support means comprises at least two separate arms linked with the first extremity portion, and for which each extremity comprises one of the welding zones.
3/ Cathode ray tube according to claim 1, wherein the said at least one of these support means moreover comprises a second metal member in the form of a plate of which one of the extremities is welded to the surface of the frame and the other extremity to the second extremity portion of the first metal member.
4/ Cathode ray tube according to claim 1, wherein the said at least one of these support means is attached to the frame in a corner of this frame.
5/ Cathode ray tube wherein the support means of the frame/mask assembly are all in accordance with claim 4.
6/ Cathode ray tube wherein it comprises at least two support means in accordance with claim 1, joined to two opposite sides of the frame.
7/ Cathode ray tube according to claim 1, wherein the front face of the tube is noticeably flat.