Laminated spring structure for CRT

Abstract

A spring used in a CRT interconnects a stud pin embedded into a CRT panel and a mask frame mounting a shadow mask thereon so that the spring removably mounts the shadow mask within the CRT panel. In order to minimize or interrupt a vibration energy transmitted to the shadow mask, the spring is formed with a composite metal plate having a laminated structure of more than two materials capable of converting the vibration energy applied thereto into a thermal energy by an internal or interfacial friction. The composite metal plate is preferably composed of a first steel, a zinc alloy, and a second steel. A method of making the spring includes the steps of plating two or more metallic materials in sequence, rolling the plated metallic materials into an integrated composite metal plate, and forming the composite metal plate into a spring shape.

Dependencies are inferred from the claim text.