Means and method of forming aligned apertures in electron guns

Details Means and method of forming aligned apertures in electron guns Means and method of forming aligned apertures in electron guns

1987-06-26

1989-01-03

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

219 69M, 445 66, H01J 902

Patent

active

047953918

ABSTRACT:
A method of forming aligned apertures in the electrode plates of an electron gun which includes a plurality of electrode plates at least one of which is preapertured and at least another is unapertured. A boring tool, such as an electric-discharge machine, is sized to fit snugly within the aperture in the preapertured electrode plate. The boring tool is inserted through the aperture in the preapertured electrode plate whereby the plate aligns the tool in a position of concentricity. The tool is activated to form a precision concentric aperture in the unapertured electrode plate.

REFERENCES:
patent: 3410980 (1968-11-01), Gugger et al.
patent: 4071932 (1978-02-01), Standaart

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