Circuit interrupter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 14, 1983
Issued Date -
N/A
app pub date -
Nov 23, 1981
filing date -
Feb 7, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The contact structure and the arc extinguisher means of a circuit interrupter are enclosed in an insulating housing of each pole and the operating mechanism is isolated from the contact structure and located outside of the housing. The housing for each pole forms an arc extinguisher amper with a detachably attached cover containing an arc extinguisher, and a contact chamber containing a contact structure in each pole. An interconnecting rod, located between the contact structure and the operating mechanism has a flange or barrier for covering an opening in the housing through which the rod extends. Upon contact separation, the electric arc increases the internal pressure within the housing, thereby rapidly effecting arc extinction. The dielectric strength between the contact structure and the operating mechanism is also greatly increased in comparison with conventional designs.
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