Time delay switch mechanism

Details Time delay switch mechanism Time delay switch mechanism

1980-01-24

1981-10-27

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 34, 200318, 337 5, H01H 703

Patent

active

042975549

ABSTRACT:
A high voltage switch having a snap-action switching mechanism for effecting opening and closing of relatively movable switch contacts, and having mechanical time delay trip release mechanism operatively associated with the switching mechanism to effect a selected time delayed opening of the switch contacts in response to a predetermined event such as a current overload. The time delay trip release may also be manually actuated to open the switch contacts from a closed condition.

REFERENCES:
patent: 2663775 (1953-12-01), MacNeill et al.
patent: 2809252 (1957-10-01), Lingal et al.
patent: 2881285 (1959-04-01), Bank
patent: 2995043 (1961-08-01), Lusk et al.
patent: 3164693 (1965-01-01), Nicholas et al.
patent: 3211870 (1965-10-01), Lusk et al.
patent: 3519970 (1970-07-01), Lusk et al.

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