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| Number | Title | Issue Date |
| 7420133 | Door interlock for rotary actuated circuit breaker A rotary circuit breaker door safety interlock for use with a power switch actuated by a rotating shaft installed in a enclosure with a hinged door is disclosed. The door safety rotary circuit breaker interlock functions both to prevent the enclosure door from being... | 09/02/2008 |
| 7358838 | Electrical switching apparatus and trip indicator therefor A trip indicator is for a circuit breaker having a housing including first and second openings, separable contacts and an operating mechanism having an operating handle protruding from the first opening. The trip indicator includes a one-piece flag member with a fir... | 04/15/2008 |
| 7067746 | Travelling mechanism for a withdrawable circuit-breaker A travelling mechanism for a withdrawable circuit-breaker includes a crank handle that is secured in a manner that prevents it from being removed. A shaft of the crank handle revolves around an input shaft and is guided in a manner that permits it to be displaced in... | 06/27/2006 |
| 6974922 | Rotary service switch for the interior of electrical enclosures having a disconnect switch A rotary switch assembly for mounting on a disconnect switch (10) in an electrical enclosure (26) includes a base (50) and a rotor (60) which is rotatably coupled to the base (50). The rotor (60) is first axially depressed a... | 12/13/2005 |
| 6963042 | Remote controlled circuit breaker switch handle engagement apparatus A remote controlled circuit breaker switch handle engagement apparatus is provided. The apparatus is adapted to be removably attached across a circuit breaker face-plate of a traditional residential and commercial circuit breaker in order to facilitate remote comple... | 11/08/2005 |
| 4305610 | Defeatable interlock for fuse access door A fuse access door of a fusible switch enclosure is held closed by a latch slidably mounted thereto. A resilient interlock actuator secured to the door cooperates with a defeatable switch interlock arm to enable switch closure only while the door is close... | 12/15/1981 |
| 4194100 | Circuit breaker enclosure 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 circui... | 03/18/1980 |
| 4118607 | Interlock means for switch enclosure An electric switch mounted within an enclosure having a hinged cover is manually operated from outside the enclosure by a handle mechanism secured to the enclosure. The cover is provided with a single aperture near the edge thereof remote from the cover h... | 10/03/1978 |
| 4107488 | Platform mounted switch operating mechanism An electric switch mounted within an enclosure having a hinged cover is manually operated from outside the enclosure by a handle mechanism secured to the enclosure. The cover is provided with a single aperture near the edge thereof remote from the cover h... | 08/15/1978 |
| 4104491 | Latch means for switch enclosure An electric switch mounted within an enclosure having a hinged cover is manually operated from outside the enclosure by a handle mechanism secured to the enclosure. The cover is provided with a single aperture near the edge thereof remote from the cover h... | 08/01/1978 |
| 4079214 | Defeatable access door interlock for circuit breaker enclosure A door interlock includes first and second, normally intercoupled plates mounted to a circuit breaker for sliding movement between respective first and second positions. The first plate includes an aperture through which a circuit breaker trip pushbutton ... | 03/14/1978 |
| 4074091 | Interlocking operating mechanism for enclosed switchgear having defeater interlock An operating mechanism for an enclosed circuit breaker is disclosed and comprises: a frame mounted within an enclosure; a linearly reciprocal handle slidably mounted to the frame for operating a circuit breaker within the enclosure and extending through a... | 02/14/1978 |
| 4031340 | Defeater for mechanical safety interlock for covers of explosion-proof electrical housing An explosion-proof electrical enclosure has a body, switch mounted within the body, two threaded caps cooperatively engaging manually defeatable locking bolts in the body which prevent rotation of the caps and manually operated interlocking mechanism moun... | 06/21/1977 |
| 3980845 | Circuit breaker operator with defeates interlock mechanism A rotary handle operator mechanism is fixedly mounted in an enclosure having a circuit interrupter mounted therein on the rear wall thereof. The mechanism includes a main handle disposed outside the enclosure for manual operation and being keyed to a cam ... | 09/14/1976 |
| 3970808 | Circuit interrupter having rotary switch operator and interlocking structure with two position mounting plate A rotary handle mechanism for operating a switch device secured to the rear wall of an enclosure is mounted separate from the enclosure cover and extends through a cover opening to be operable from outside of the enclosure when the cover is closed. The me... | 07/20/1976 |
