Method of manufacturing a vacuum-type circuit interrupter

Details Method of manufacturing a vacuum-type circuit interrupter Method of manufacturing a vacuum-type circuit interrupter

1978-04-13

1979-06-26

Lanham, C. W.

Metal working

Method of mechanical manufacture

Electrical device making

200144B, H01H 930

Patent

active

041589114

ABSTRACT:
The following method is used for manufacturing a vacuum-type circuit interrupter that comprises: (i) an envelope comprising a glass casing and an annular metal disc imbedded in the glass and (ii) a tubular metal shield mounted on the disc. The shield is first located within the tubular casing and then fastened to said disc, thereby forming a shield-envelope subassembly. This subassembly is attached to the table of a vibrator. The vibrator is then operated to vibrate the subassembly, thereby producing between the glass casing and the shield force that acts to flex the disc, thus removing loosely-adhered glass particles from the disc. Then the subassembly is removed from the vibrator table, rinsed, and used in a conventional manner to complete the interrupter.

REFERENCES:
patent: 3376186 (1968-04-01), Douillard
patent: 3469049 (1969-09-01), Crouch
patent: 3495165 (1970-02-01), Cobine
patent: 4063991 (1977-12-01), Farrall
patent: 4072837 (1978-02-01), Crouch
patent: 4079217 (1978-03-01), Oeschger

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