Method of increasing voltage withstanding capability of vacuum i

Details Method of increasing voltage withstanding capability of vacuum i Method of increasing voltage withstanding capability of vacuum i

1977-01-21

1977-12-20

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

65 31, 65 61, 156663, 200144B, H01H 930

Patent

active

040639916

ABSTRACT:
Loose glass particles in a vacuum interrupter, and glass attached to the interrupter midband, are removed with an etch of hydrofluoric acid applied over the entire interior of the glass envelope and the midband, following a grit blast of the entire interior of the glass envelope and the midband.

REFERENCES:
patent: 3527628 (1970-09-01), Fullerton et al.
patent: 3813276 (1974-05-01), Trap
patent: 3843472 (1974-10-01), Toussaint et al.
patent: 4029921 (1977-06-01), Rich et al.

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