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公开(公告)号：US09812268B2
公开(公告)日：2017-11-07
申请号：US15041155
申请日：2016-02-11
发明人： John Quentin Cowans
CPC分类号： H01H9/285 , E05B55/005 , E05B65/006 , H01H71/1054
摘要： A circuit breaker includes an accessory pocket, an accessory cover and a locking device to lock the circuit breaker such that an unauthorized switching of the circuit breaker from OFF to ON or from ON to OFF states is prevented. The locking device includes a first subassembly including a pocket housing. The first subassembly is configured to be installed in the accessory pocket. The locking device further includes a second subassembly including a cylinder lock. The second subassembly is configured to be mounted to the accessory cover. The first subassembly and the second subassembly are configured to self align upon final assembly of the circuit breaker to perform a locking function of the circuit breaker. In this way, the locking device prevents circumvention of a locking feature and selectively provides an ability to lock in an ON state of the circuit breaker.
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公开(公告)号：US20170236660A1
公开(公告)日：2017-08-17
申请号：US15041155
申请日：2016-02-11
发明人： John Quentin Cowans
CPC分类号： H01H9/285 , E05B55/005 , E05B65/006 , H01H71/1054
摘要： A circuit breaker includes an accessory pocket, an accessory cover and a locking device to lock the circuit breaker such that an unauthorized switching of the circuit breaker from OFF to ON or from ON to OFF states is prevented. The locking device includes a first subassembly including a pocket housing. The first subassembly is configured to be installed in the accessory pocket. The locking device further includes a second subassembly including a cylinder lock. The second subassembly is configured to be mounted to the accessory cover. The first subassembly and the second subassembly are configured to self align upon final assembly of the circuit breaker to perform a locking function of the circuit breaker. In this way, the locking device prevents circumvention of a locking feature and selectively provides an ability to lock in an ON state of the circuit breaker.
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3.发明申请公开(公告)号：US20190035568A1
公开(公告)日：2019-01-31
申请号：US15659240
申请日：2017-07-25
发明人： Jan Rojko , Jorg Sizemore , John Quentin Cowans
CPC分类号： H01H9/22 , H01H71/002 , H01H71/0207 , H01H71/0264 , H01H71/126 , H01H2071/004 , H01H2071/0292
摘要： A circuit breaker having a housing with an accessory cover includes an accessory cover interlock assembly that trips the circuit breaker upon removal of the accessory cover. The accessory cover interlock assembly includes a plunger rotatable from an initial install position to an engaged position that moves a trip lever into a de-energize position (tripping the circuit breaker) upon removal of the accessory cover. The accessory cover interlock assembly prevents the circuit breaker from being reset while the access cover is removed. The accessory cover interlock assembly automatically resets upon re-attachment of the accessory cover to the circuit breaker housing. Methods of forced safety tripping in a circuit breaker are also provided, as are other aspects.
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4.发明授权公开(公告)号：US10418197B2
公开(公告)日：2019-09-17
申请号：US15659240
申请日：2017-07-25
发明人： Jan Rojko , Jorg Sizemore , John Quentin Cowans
摘要： A circuit breaker having a housing with an accessory cover includes an accessory cover interlock assembly that trips the circuit breaker upon removal of the accessory cover. The accessory cover interlock assembly includes a plunger rotatable from an initial install position to an engaged position that moves a trip lever into a de-energize position (tripping the circuit breaker) upon removal of the accessory cover. The accessory cover interlock assembly prevents the circuit breaker from being reset while the access cover is removed. The accessory cover interlock assembly automatically resets upon re-attachment of the accessory cover to the circuit breaker housing. Methods of forced safety tripping in a circuit breaker are also provided, as are other aspects.
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