초록 ▼

The following specification describes a circuit breaker enclosure having a cover, which is latched closed by spring biased latch handles. The handles and cover move in response to gas pressure for relieving the pressure generated on tripping of the circuit breaker. The latch handles are arranged to

The following specification describes a circuit breaker enclosure having a cover, which is latched closed by spring biased latch handles. The handles and cover move in response to gas pressure for relieving the pressure generated on tripping of the circuit breaker. The latch handles are arranged to point outwardly of the enclosure, when open, to provide a clear visual indication of their being open. The circuit breaker handle and enclosure handle are directly engaged with a common pivot pin for synchronous movement to enable the enclosure handle to indicate the trip condition of the breaker. When the cover is open, the handles are interlocked against movement to an ON position by a biased pivotable interlock plate. The cover in turn is latched closed through the interlock plate and a breaker handle plate, when the circuit breaker enclosure handles are in the ON position. A pair of spaced edge projections on the enclosure wall engage the cover sealing gasket to avoid a permanent compression set in the gasket.

대표청구항 ▼

An enclosure for a circuit interrupting device comprising: a peripheral wall encircling said device, a cover carried by said wall for movement between an open and closed position, a sealing gasket carried by said cover for engaging an end edge of said wall in response to the movement of said cover t

An enclosure for a circuit interrupting device comprising: a peripheral wall encircling said device, a cover carried by said wall for movement between an open and closed position, a sealing gasket carried by said cover for engaging an end edge of said wall in response to the movement of said cover to said closed position, a latch element, means carrying said latch element on said wall for pivotal and longitudinal movement relative said wall to enable said latch element to engage said cover for latching said cover in said closed position, and bias means for biasing said latch element longitudinally relative said wall for placing said gasket under pressure against said end edge in response to the latching of said cover in said closed position and for pivoting said latch element in response to the disengagement of said latch element from said cover for indicating an open position of said cover.