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公开(公告)号：US4973928A
公开(公告)日：1990-11-27
申请号：US331920
申请日：1989-03-31
Applicant: Kurt A. Grunert
Inventor： Kurt A. Grunert
IPC: H01H71/74
CPC classification number: H01H71/7463
Abstract: A molded case circuit breaker is provided with a magnetic trip device which allow for a relatively wide range of adjustment. The magnetic trip device allows the magnetic air gap to be varied as well as the spring force on the plunger. Additionally, the magnetic trip device allows the force required to rotate the trip bar to be varied. By providing a means for adjust the force required to rotate the trip bar, the adjustment range of the magnetic trip device can be substantially enhanced. The molded case circuit breaker includes at least one pair of separable main contacts. The separable main contacts are mounted on upper and lower contact arms. The lower contact arm may be rigidly mounted to a line side conductor, while the upper contact arm is pivotally mounted to a load side conductor. The upper contact arm is mechanically coupled to an operating mechanism. A pivotally mounted trip bar is operatively coupled to the operating mechanism. In a normal condition, the trip bar allows the operating mechanism to be latched. When the trip bar is rotated, the operating mechanism becomes unlatched and opens the separable main contacts.
Abstract translation: 一个塑壳断路器设有一个允许相对宽范围调节的磁脱扣器。 磁跳闸装置允许磁性空气间隙以及柱塞上的弹簧力变化。 此外，磁跳闸装置允许使跳闸杆旋转所需的力变化。 通过提供用于调节旋转跳闸杆所需的力的装置，可以显着提高磁跳闸装置的调节范围。 模制外壳断路器包括至少一对可分离的主触点。 可分离的主触点安装在上和下触点臂上。 下接触臂可以刚性地安装到线路侧导体，而上接触臂枢转地安装到负载侧导体。 上接触臂机械地联接到操作机构。 可枢转地安装的跳闸杆可操作地联接到操作机构。 在正常情况下，跳闸杆允许锁定操作机构。 当跳闸杆旋转时，操作机构解锁并打开可分离的主触点。
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公开(公告)号：US4963846A
公开(公告)日：1990-10-16
申请号：US389849
申请日：1989-08-04
Applicant: Kurt A. Grunert , Ronald A. Cheski , Robert J. Tedesco , Michael J. Whipple , Melvin A. Carrodus , James G. Maloney
Inventor： Kurt A. Grunert , Ronald A. Cheski , Robert J. Tedesco , Michael J. Whipple , Melvin A. Carrodus , James G. Maloney
CPC classification number: H01H71/126
Abstract: A trip interlock assembly trips a circuit breaker any time the circuit breaker is removed from its panel mounting. The trip assembly is adapted to be disposed about a load side terminal and cooperate with the circuit breaker tripping device. In one embodiment, the trip assembly includes a housing and a spring-loaded actuation arm, disposed generally perpendicular to the circuit panel surface. The actuation arm is formed with a cam surface which cooperates with a trip pin adapted to actuate said circuit breaker tripping device. The trip pin acts as a cam follower and rides along the cam surface formed in the actuation arm. When the actuation arm is in an inward position the trip pin is in a normal position. However, when the circuit breaker is removed from the panel, the actuation arm under the influence of a biasing spring moves outwardly. This causes the cam surface on the actuation arm to actuate the trip pin to trip the circuit breaker. In an alternative embodiment of the invention, the trip interlock assembly includes a bell crank with a reciprocally mounted plunger which actuates an armature in the tripping device directly, instead of by way of the trip pin, anytime the circuit breaker is removed from its panel housing.
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公开(公告)号：US4697163A
公开(公告)日：1987-09-29
申请号：US845302
申请日：1986-03-27
Applicant: Kurt A. Grunert , James R. Farley
Inventor： Kurt A. Grunert , James R. Farley
CPC classification number: H01H71/2463 , H01H71/44 , H01H71/2454 , H01H71/7463
Abstract: A circuit breaker having a trip delay mechanism characterized by a variable magnetic air gap that is adjustable to permit time delay at low level overcurrents to avoid nuisance tripping during motor starting.
Abstract translation: 具有跳闸延迟机构的断路器，其特征在于可变磁气隙，其可调节以允许在低电平过电流下的时间延迟，以避免电动机起动期间的妨碍跳闸。
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公开(公告)号：US4691180A
公开(公告)日：1987-09-01
申请号：US875914
申请日：1986-06-19
Applicant: Kurt A. Grunert , Joseph F. Changle
Inventor： Kurt A. Grunert , Joseph F. Changle
CPC classification number: H01H71/68 , H01H2071/665 , H01H3/227
Abstract: A circuit breaker with electrical disconnect means characterized by a solenoid operator for moving a handle of a circuit breaker between ON and OFF positions. The solenoid operator includes a movable electromagnet and a movable armature for actuating the handle, an interlock switch serially connected to the electromagnet and a manual operator for overriding the solenoid operator by opening a circuit through the interlock switch.
Abstract translation: 一种具有电气断开装置的断路器，其特征在于电磁操作器，用于在断开或断开位置之间移动断路器的手柄。 螺线管操作器包括可移动电磁体和用于致动手柄的可动电枢，串联连接到电磁体的互锁开关和手动操作器，用于通过通过互锁开关打开电路来超越电磁操作器。
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公开(公告)号：US4206436A
公开(公告)日：1980-06-03
申请号：US717968
申请日：1976-08-26
Applicant: Kurt A. Grunert , John J. Henwood
Inventor： Kurt A. Grunert , John J. Henwood
CPC classification number: H01B3/02 , H01B3/08 , H01F27/022 , Y10S174/01
Abstract: An electrical apparatus, comprising an electrical conductor, is encapsulated with a cured, solid insulation comprising bonded, catalyzed, resin coated filler particles, where the resin constitutes from about 1 weight percent to about 12 weight percent of the resin coated filler particle weight.
Abstract translation: 包括电导体的电气设备用包括粘合的，催化的树脂涂覆的填料颗粒的固化的固体绝缘包封，其中树脂占树脂涂覆的填料颗粒重量的约1重量％至约12重量％。
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Patent Agency Ranking
公开(公告)号：US5394126A
公开(公告)日：1995-02-28
申请号：US229039
申请日：1994-04-18
Applicant: Kurt A. Grunert , William E. Beatty
Inventor： Kurt A. Grunert , William E. Beatty
CPC classification number: H01H71/7463
Abstract: A circuit breaker with improved magnetic trip assembly includes electrical contacts operable between a closed position in which a circuit is completed and an open position in which the circuit is interrupted, a latchable operating mechanism operable to open the electrical contacts when unlatched and a trip bar rotatable from a biased position to a trip position to unlatch the operating mechanism. The circuit breaker further includes a magnetic trip assembly comprising a stationary magnetic structure, a movable armature which is attracted to the stationary magnetic structure by an abnormal current through the conductor to rotate the trip bar to the trip position and a plate means mounted to the movable armature and disposed between the armature and the stationary magnetic structure. The plate means adjusts the amount of abnormal current required to attract the movable armature to the stationary magnetic structure and in turn rotate the trip bar.
Abstract translation: 具有改进的磁跳闸组件的断路器包括可在其中完成电路的闭合位置和电路中断的打开位置之间操作的电触头，可闩锁的操作机构，当解锁时可操作以打开电触点，并且跳闸杆可旋转 从偏置位置到行程位置以解除操作机构。 断路器还包括磁跳闸组件，其包括固定磁性结构，可移动电枢，其通过导体的异常电流吸引到固定磁性结构，以将跳闸杆旋转到跳闸位置;以及板装置，安装到可移动的 电枢并且设置在电枢和静止磁结构之间。 板装置调节将可动电枢吸引到固定磁性结构所需的异常电流量，并进而旋转跳闸杆。
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公开(公告)号：US5288958A
公开(公告)日：1994-02-22
申请号：US860660
申请日：1992-03-30
Applicant: Kurt A. Grunert , Gerald J. Leary , Joseph M. Kline , Ronald D. Smiddle
Inventor： Kurt A. Grunert , Gerald J. Leary , Joseph M. Kline , Ronald D. Smiddle
CPC classification number: H01H71/56 , H01H9/22 , H01H2003/323 , H01H2009/288 , H01H2071/565 , H01H71/501 , H01H9/282
Abstract: A remotely positioned rotary operator handle for cooperating with a circuit breaker with a linearly movable handle. A housing is mounted over the circuit breaker handle. Within the housing a slide carrying a rack engages the circuit breaker handle which further engages a pinion gear sector mounted on a rotatable shaft. The rotatable shaft extends from the housing and has positioned thereon a motion translating device which translates between rotational motion and linear motion. The rotary handle extends from a housing which is flange mounted on a cabinet in which the circuit breaker is disposed. A corresponding motion translating device is attached to the flange mounted rotary handle which is in turn connected to the motion translating device attached to the rotatable shaft. The connection between the motion translators comprises a linearly moving link. The rotary handle has an extendable hasp which comprises part of the connection between the rotatory handle and the motion translating device. The hasp is provided for allowing the the circuit breaker to be locked in the off position. The hasp has a foot which fixedly engages the rotary handle housing when in the extended position thereby preventing the rotation of the rotary operator handle. The hasp further has an aperture which accepts the shackle of a lock for locking the hasp in the extended position.
Abstract translation: 一个远程定位的旋转操作手柄，用于与具有线性移动手柄的断路器配合。 外壳安装在断路器手柄上。 在壳体内，携带齿条的滑块与断路器手柄接合，进一步接合安装在可旋转轴上的小齿轮扇区。 旋转轴从壳体延伸并且在其上定位有在旋转运动和线性运动之间平移的运动平移装置。 旋转手柄从安装在其中布置有断路器的机柜上的凸缘的外壳延伸。 相应的运动平移装置附接到法兰安装的旋转手柄上，该旋转手柄又连接到连接到可旋转轴的运动平移装置。 运动翻译器之间的连接包括一个线性移动链接。 旋转手柄具有可延伸的搭扣，其包括旋转手柄和运动平移装置之间的连接部分。 提供了散热片以允许断路器锁定在关闭位置。 散热器具有足部，其在处于延伸位置时固定地接合旋转手柄壳体，从而防止旋转操作器手柄的旋转。 哈氏进一步具有一个孔口，该孔口接受锁定件的钩环，以将该钩子锁定在伸出位置。
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公开(公告)号：US4683451A
公开(公告)日：1987-07-28
申请号：US839484
申请日：1986-03-14
Applicant: Kurt A. Grunert , Alfred E. Maier
Inventor： Kurt A. Grunert , Alfred E. Maier
Abstract: A circuit breaker with a magnetic circuit for delaying the trip function and characterized by a dual variable magnetic circuit air gap which allows a time delay at low level overcurrents, such that motor starting transient currents do not prematurely trip the circuit breaker.
Abstract translation: 一种具有用于延迟跳闸功能的磁路的断路器，其特征在于允许在低电平过电流下的时间延迟的双可变磁路气隙，使得电动机起动瞬变电流不会过早地跳闸断路器。
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公开(公告)号：US4554421A
公开(公告)日：1985-11-19
申请号：US719036
申请日：1985-04-03
Applicant: Kurt A. Grunert , Joseph F. Changle
Inventor： Kurt A. Grunert , Joseph F. Changle
IPC: H01H9/28
CPC classification number: H01H9/282
Abstract: A molded case circuit breaker includes a handle lock or locking mechanism for preventing unauthorized use of the circuit breaker. The locking mechanism includes a lock cover disposed over a manually engagable handle of the circuit breaker and a spring biased locking cylinder and spindle assembly disposed normally above the lock cover and movable along an elongated slot formed through the lock cover. The cylinder and spindle assembly is mechanically connected to the handle for movement in unison therewith. The elongated slot includes an enlarged locking portion that is located along the lock cover in a position corresponding to the OFF position of the handle and the OPEN position of the separable electrical contacts of the circuit breaker. An elongated cylinder of the cylinder and spindle assembly is receivable through the locking portion of the elongated slot and when retained therein prevents substantial movement of the handle from its OFF position.
Abstract translation: 模制外壳断路器包括用于防止未经授权使用断路器的手柄锁或锁定机构。 锁定机构包括设置在断路器的手动接合手柄上的锁盖和正常位于锁盖上方的弹簧偏压锁定气缸和主轴组件，并且可沿着通过锁盖形成的细长槽移动。 气缸和主轴组件机械地连接到手柄以与其一起运动。 细长槽包括放大的锁定部分，该锁定部分沿着锁盖位于与手柄的OFF位置相对应的位置和断路器的可分离的电触点的打开位置。 圆柱体和心轴组件的细长圆柱体可通过细长狭槽的锁定部分接收，并且当保持在其中时可防止手柄从其关闭位置的实质移动。
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公开(公告)号：US4158827A
公开(公告)日：1979-06-19
申请号：US808573
申请日：1977-06-21
Applicant: Walter V. Bratkowski , Kurt A. Grunert
Inventor： Walter V. Bratkowski , Kurt A. Grunert
IPC: H01H77/10
CPC classification number: H01H77/107
Abstract: A current limiting contactor characterized by stationary and movable contacts, an elongated conductor supporting the movable contact, the conductor being fixedly mounted at a position spaced from the movable contact, the conductor having a looped portion including a pair of overlapping segments for conducting current in opposite directions of each other, the movable contact engaging the stationary contact when conducting a current up to a predetermined current value, and the conductor being comprised of a flexible material and the overlapping portions being separable to move the movable contact away from the stationary contact when the current exceeds said predetermined value.
Abstract translation: 一种限流接触器，其特征在于固定和可动触点，支撑可动触点的细长导体，导体固定地安装在与可动触点间隔开的位置处，该导体具有环形部分，该环形部分包括一对重叠段， 彼此相对的方向，当将电流达到预定电流值时，可动触头接合固定触点，并且该导体由柔性材料组成，并且重叠部分可分离以使活动触头远离固定触点移动， 电流超过所述预定值。
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