Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With housing or support means
Patent
1998-06-08
1999-12-14
Gellner, Michael L.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With housing or support means
335 8, 335 35, 335201, 200306, 218 35, 218155, H01H 902
Patent
active
060023139
ABSTRACT:
A circuit interrupter including an operating mechanism and separable main contacts interconnected with load and line terminals has an interface region between the top and bottom portions of the completed housing thereof, which may be of reduced cross section relative to the remainder of the side walls of the circuit interrupter for being moved or pushed outwardly under the pressure of expanding gas during a circuit interruption operation. To more easily clear or separate abutment surfaces by near lateral movement thereof to provide a small opening for pressurized gas to escape the elasticity of the side wall is utilized for this purpose. Provided that the elasticity limit is not exceeded, the wall will return to its original position sealing the internal portions of the circuit interrupter from the exterior once the gas pressure has dropped below a predetermined level.
REFERENCES:
patent: 4503408 (1985-03-01), Mrenna et al.
patent: 4581511 (1986-04-01), Leone
patent: 4639564 (1987-01-01), Grunert et al.
patent: 4650940 (1987-03-01), Grunert et al.
patent: 5015983 (1991-05-01), DeRosier et al.
Malingowski Richard P.
Mrenna Stephen A.
Palmer Kathryn M.
Eaton Corporation
Gellner Michael L.
Moran Martin J.
Nguyen Tuyen T.
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