Contact-separating device for circuit breakers
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United States of America Patent
Stats
-
Mar 26, 1996
Grant Date -
N/A
app pub date -
Jul 25, 1994
filing date -
Aug 3, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for separating a pair of electric contacts which tend to weld and consist of a stationary contact 11 and a contact 12 which is movable away from the stationary contact, particularly in a circuit breaker is provided. The device includes a tripping lever 17, which is biased in a contact-separating direction and serves to actuate the movable contact 12, and means 19 for holding the tripping lever 17 in its stand-by position. The movement of the tripping lever 17 from its stand-by position involves a displacement of a lever fulcrum to a first position where a strong separating force is exerted on the movable contact 12 and then to a second position where a weaker separating force is exerted on the movable contact 12.
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