Method of fixing to frame electrode or shadow mask for color ima

Details Method of fixing to frame electrode or shadow mask for color ima Method of fixing to frame electrode or shadow mask for color ima

1995-08-09

1997-10-28

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 37, 29448, H01J 918

Patent

active

056811977

ABSTRACT:
A method for fixing to a frame an electrode or a shadow mask for an image receiving tube. The method includes steps for stretching, in opposite directions, supporting ends of a rectangular mask plate having apertures formed between the supporting ends, in order to generate a tensile force having a uniform distribution over the entire surface of the plate. The method also includes pressing inwardly and bending a pair of elastic supporting elements, constituting two confronting sides of a frame, so that a distribution of the pressing force in a direction of each of the sides almost balances with a distribution of the tensile force. The supporting ends of the mask plate are then rigidly fixed to both of the bent supporting elements of the frame. The stretching and pressing forces applied to the mask plate and the frame are then released.

REFERENCES:
patent: 5041756 (1991-08-01), Fairbanks
patent: 5348506 (1994-09-01), Kawamura et al.

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