Patent ID: 7958623
Filing Date: 2011-06-14
Classification: H01H,Y10T

Abstract:
1. A method of manufacturing a current switch magnetic intensifier comprising the steps of: (A) cutting a regular trapezoidal body of a magnetic material; (B) folding the trapezoidal body along fold lines perpendicular to its parallel sides to bound a central base flanked by a pair of upstanding arc rails; (C) folding the trapezoidal body along another set of fold lines perpendicular to its parallel sides and in a direction generally opposite to the direction of the upstanding arc rails; and (D) fitting the base proximate a stationary contact so that only the arc rails extend beyond each side of the stationary contact and so that the body can be positionally secured relative to a turnback that supports the stationary contact only by frictionally disposing the body within a passage formed by a turnback and such that a force of a magnetic field generated by the contactor magnetic intensifier is directed in a common direction with a direction of reduced resistance of the pair of arc rails.