Internal magnetic shield-frame mounting means
AssigneeRCA Thomson Licensing Corporation
InventorDennis C. Lambert
Life of this patent
Estimating the term…
Abstract
A cathode-ray tube has a faceplate panel joined to a funnel. An internal magnetic shield is disposed within the tube and is connected to a bottom surface of a flange of a shadow mask frame. The flange of the shadow mask frame has a plurality of integral shield-retaining clips formed therein. Each of the clips overlaps at least a portion of the shield, to retain it in contact with the flange of the frame.
Claims6
In a cathode-ray tube having a faceplate panel joined to a funnel and having an internal magnetic shield connected to a bottom surface of a flange of a shadow mask frame, the improvement comprising said flange of said shadow mask frame having a plurality of integral shield-retaining clips formed therein, wherein each of said shield-retaining clips being formed from said flange of said frame by piercing said flange to raise said clips out of the body of said flange, thereby providing a cavity directed toward a central longitudinal axis of said tube to retain a shoulder of said shield therein, each of said clips overlapping at least a portion of said shield to retain said shield in contact with said flange of said frame.
In a cathode-ray tube having a faceplate panel joined to a funnel thereof along a sidewall of said panel, and having an internal magnetic shield disposed therein proximate an inner surface of said funnel and connected to a bottom surface of a first flange of a shadow mask frame, said first flange being oriented orthogonally to a central longitudinal axis of said tube, a multi-apertured shadow mask being connected along an edge thereof to a second flange of said shadow mask frame which is generally aligned parallel to said central longitudinal axis, the improvement wherein said first flange of said shadow mask frame having a plurality of integral shield-retaining clips formed therein by piercing said first flange to raise said clips from the body of said flange thereby providing a cavity directed toward said central longitudinal axis of said tube, each of said clips overlapping a shoulder of said shield to retain said shield within said cavity and in contact with said first flange of said frame.
Dependencies are inferred from the claim text.