Method for making a magnetic shield

Details Method for making a magnetic shield Method for making a magnetic shield

1986-06-30

1988-12-20

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

2281736, 313402, 313479, 219 82, H01J 2906, B23P 2300

Patent

active

047923172

ABSTRACT:
The specification discloses a method for forming thin metal, television tube magnetic shields by blanking "lazy C" shaped blanks from a strip of thin metal, forming the blanks around a truncated pyramidal form so their edges overlap, mash seam welding the overlapping edges so as to eliminate open space between the overlapping portions and forming a peripheral flange by bending the outer edge of the thus formed truncated pyramidal member.

REFERENCES:
patent: 3418707 (1968-12-01), Emerson
patent: 3516147 (1970-06-01), Seedorft et al.
patent: 3715558 (1973-02-01), McGill
patent: 3748721 (1973-07-01), Alexander
patent: 3792522 (1974-02-01), Gray et al.
patent: 4580076 (1986-04-01), Shimoma et al.

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