Electricity: circuit makers and breakers – Interlocking – Drawout-type switchgear
Patent
1997-07-15
1998-11-17
Scott, J. R.
Electricity: circuit makers and breakers
Interlocking
Drawout-type switchgear
200 5027, 361608, H02B 1100, H01H 158, H01H 900
Patent
active
058379509
ABSTRACT:
In a drawer type circuit breaker of the invention, when a first contact is clockwise pivoted by a switching mechanism, the contact tip of the first contact and the contact tip of a second contact are touched, and when the first contact is further clockwise pivoted, the second contact is counterclockwise pivoted against the elastic force of a spring to secure a predetermined contact pressure and a predetermined wiping stroke. A first drawer contact clamps the outer circumferential portion of the first contact and a first external connection terminal together by the elastic force of a spring to establish connection between the first contact and the first external connection terminal. A second drawer contact clamps the outer circumferential portion of the second contact and a second external connection terminal together by the elastic force of another spring to establish connection between the second contact and the second external connection terminal.
REFERENCES:
patent: 3562459 (1971-02-01), Bould et al.
patent: 4546220 (1985-10-01), Mostosi
patent: 5335140 (1994-08-01), Kamino et al.
Scott J. R.
Terasaki Denki Sangyo Kabushiki Kaisha
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