Shock-absorbing means for mesh-carrying member of a cathode ray tube
AssigneeTektronix, Inc.
InventorPatrick J. McGrath, Jr.
Life of this patent
Estimating the term…
Abstract
A cathode ray tube includes improved means for supporting scan expansion mesh electrode means, the supporting means comprising knitted metal mesh means in the form of metal braid secured to the mesh electrode means.
Claims4
In a cathode ray tube having a neck section and an electron gun structure including a mesh-carrying electrode member, the improvement comprising:
- snubber spring means provided on the mesh-carrying electrode member;
- and
- metal mesh means secured onto said snubber spring means and an exterior surface of the mesh-carrying electrode member and being disposed between the mesh-carrying electrode member and an inside surface of the neck section for absorbing shock forces to the cathode ray tube to prevent the mesh-carrying electrode member from engaging the inside surface of the neck section.
In a cathode ray tube having a neck section and an electron gun structure including a cylindrical mesh-carrying electrode member, the improvement comprising:
- metal mesh means secured onto an exterior surface of the mesh-carrying electrode member between the front and rear ends thereof and being disposed between the mesh-carrying electrode member and an inside surface of the neck section for absorbing shock forces to the cathode ray tube to prevent the mesh-carrying electrode member from engaging the inside surface of the neck section;
- and
- said metal mesh means being an annular member having sufficient thickness thereby defining mounting, aligning and shock-absorbing and vibration-damping means for the mesh-carrying electrode member.
In a cathode ray tube having a neck section and an electron gun structure including a mesh-carrying electrode member, the improvement comprising:
- arcuate-shaped spring means having one end secured to the mesh-carrying electrode member while the other end is movable relative thereto;
- and
- metal mesh means being in the form of an annular member and being secured onto said arcuate-shaped spring means, said arcuate-shaped spring means and said metal mesh means being disposed between the mesh-carrying electrode member and an inside surface of the neck section for absorbing shock forces to the cathode ray tube to prevent the mesh-carrying electrode member from engaging the inside surface of the neck section and defining mounting, aligning and shock-absorbing and vibration-damping means.
Dependencies are inferred from the claim text.