Circuit breaker apparatus with static pressure lock

Details Circuit breaker apparatus with static pressure lock Circuit breaker apparatus with static pressure lock

1976-07-29

1978-08-08

Marcus, Stephen

Electricity: circuit makers and breakers

Liquid contact

Time delay

29622, 200302, 220359, H01H 3364

Patent

active

041058810

ABSTRACT:
An enclosed cylindrical vessel has a cover which is keyed to the vessel. The vessel encloses the separable main contacts and operating mechanism of a circuit interrupter. One of the terminals for the circuit interrupter is disposed on the side of the cylindrical vessel. The other terminal comprises the cover. It is keyed to the inside of the cylindrical vessel with a contiguous mass of hardened epoxy cement. The contiguous mass exists in hardened form between an indentation in the inner wall of the cylindrical vessel and an indentation in the outer wall of the cover-terminal. This prevents the cover from being forced out of the end of the cylindrical terminal by the pressure of gas inside. In addition, radial holes are disposed in the side walls of the cylindrical vessel. The contiguous mass of hardened epoxy material also occupies the latter holes and prevents the terminal cover from rotating in the vessel.

REFERENCES:
patent: 681774 (1901-09-01), Bailey
patent: 724443 (1903-04-01), Culp
patent: 1208355 (1916-12-01), Nechamkus
patent: 2757261 (1956-07-01), Lingal et al.
patent: 3286066 (1966-11-01), Floessel
patent: 3685682 (1972-08-01), Frey
patent: 3733452 (1973-05-01), Strippoli et al.
patent: 3801727 (1974-04-01), Wilkinson et al.
patent: 3801762 (1974-04-01), Noack
patent: 3825148 (1974-07-01), Hunter et al.
patent: 3902031 (1975-08-01), McConnell
patent: 3959577 (1976-05-01), Frink

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