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公开(公告)号：US4511773A
公开(公告)日：1985-04-16
申请号：US519935
申请日：1983-08-03
申请人： Eldon B. Heft , Irvin C. Huseby , Jan W. Szymaszek
发明人： Eldon B. Heft , Irvin C. Huseby , Jan W. Szymaszek
CPC分类号： F27D1/00 , C04B28/342 , C04B35/22
摘要： A ceramic useful as an electrically insulating material is produced by calcinating wollastonite powder, admixing the calcined powder with phosphoric acid of certain P.sub.2 O.sub.5 concentration range, die-pressing the resulting mixture, and firing the resulting pressed piece. The ceramic is employed within arc circuit breakers as a substitute for asbestos liners, dividers and arc splitters.
摘要翻译： 用作电绝缘材料的陶瓷是通过煅烧硅灰石粉末，将煅烧的粉末与特定P2O5浓度范围的磷酸混合，对所得混合物进行压模，并烧制所得到的压制片而产生的。 陶瓷用于电弧断路器中，作为石棉衬垫，分隔器和电弧分配器的替代品。
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公开(公告)号：US4431877A
公开(公告)日：1984-02-14
申请号：US353449
申请日：1982-03-01
CPC分类号： H01H71/121 , H01H2009/305 , H01H9/302
摘要： A thermal shield is employed with a circuit breaker operating spring to protect the spring from thermal degradation during contact arcing. One embodiment includes an ablative plastic coating on the outer surface of the shield to promote arc quenching.
摘要翻译： 热屏蔽与断路器操作弹簧一起使用，以防止弹簧在接触电弧过程中发生热降解。 一个实施例包括在屏蔽的外表面上的消融性塑料涂层以促进电弧淬火。
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公开(公告)号：US4346358A
公开(公告)日：1982-08-24
申请号：US225496
申请日：1981-01-16
申请人： Eldon B. Heft
发明人： Eldon B. Heft
CPC分类号： H01H71/43 , H01H2071/2427
摘要： A rearward extension of a circuit breaker pivotally mounted movable contact arm is positioned, with the arm in its closed position, to engage a trip bar and trip the breaker in response to popping movement of the arm away from its closed position as induced by the flow of high level fault current. The trip bar is configured such that the circuit breaker is not tripped incident to manual operation of the movable arm between its open and closed positions.
摘要翻译： 断路器枢转安装的可动接触臂的向后延伸定位成使臂处于其关闭位置，以接合跳闸杆并响应于臂的突出运动远离其由流动引起的关闭位置而跳动断路器 的高电平故障电流。 跳闸杆被构造成使得断路器在其可打开位置和闭合位置之间不会触发可动臂的手动操作。
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公开(公告)号：US4481491A
公开(公告)日：1984-11-06
申请号：US456136
申请日：1983-01-06
申请人： Eldon B. Heft , Keith W. Klein
发明人： Eldon B. Heft , Keith W. Klein
CPC分类号： H01H71/505
摘要： An electric circuit breaker includes an insulated latch and cradle mechanism to prevent deleterious arc formation between their points of separation when the circuit breaker contacts are opened under short circuit conditions. One embodiment employs an insulated latch mounted on the breaker armature.
摘要翻译： 电路断路器包括绝缘闩锁和支架机构，以在断路器触点在短路条件下打开时防止其分离点之间的有害电弧形成。 一个实施例采用安装在断路器电枢上的绝缘闩锁。
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公开(公告)号：US4281303A
公开(公告)日：1981-07-28
申请号：US128982
申请日：1980-03-10
申请人： Eldon B. Heft
发明人： Eldon B. Heft
IPC分类号： H01H77/10
CPC分类号： H01H77/104
摘要： The common trip mechanism of a multi-pole circuit breaker is supplemented by individual breaker pole trip mechanisms operating independently of each other in response to fault current flowing in its breaker pole to unlatch the movable contact arm operating therein for uninhibited, independent opening movement from its closed circuit position to a tripped open position motivated by the electrodynamic forces associated with its breaker pole fault current.
摘要翻译： 多极断路器的共同跳闸机构由单独的断路器跳闸机构补充，单独的断路器跳闸机构响应于在其断路器极中流动的故障电流而彼此独立地操作，以解除在其中操作的可动触点臂，用于不间断的独立的开启运动 闭路位置由与其断路器极故障电流相关联的电动力驱动的跳闸打开位置。
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公开(公告)号：US4413062A
公开(公告)日：1983-11-01
申请号：US382848
申请日：1982-05-27
申请人： Irvin C. Huseby , Jan W. Szymaszek , Eldon B. Heft
发明人： Irvin C. Huseby , Jan W. Szymaszek , Eldon B. Heft
CPC分类号： F27D1/0006 , C04B28/342 , C04B35/22 , H01H9/34
摘要： A ceramic useful as an electrically insulating material is produced by calcining wollastonite powder, admixing the calcined powder with phosphoric acid of certain P.sub.2 O.sub.5 concentration range, die-pressing the resulting mixture, and firing the resulting pressed piece.
摘要翻译： 用作电绝缘材料的陶瓷是通过煅烧硅灰石粉末，将煅烧的粉末与一定的P2O5浓度范围的磷酸混合，对所得到的混合物进行压模，并烧制所得到的压制片而产生的。
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