公开(公告)号：US4573757A

公开(公告)日：1986-03-04

申请号：US707178

申请日：1985-03-01

Applicant: John P. Cochran ,  Herbert J. Macemon

Inventor： John P. Cochran ,  Herbert J. Macemon

IPC: H01B17/26 ,  H01F27/04 ,  H02B1/02

CPC classification number: H01B17/265 ,  H01F27/04

Abstract: This disclosure relates to a bushing assembly for use with tank-type electrical transformers. The bushing uses a maximum amount of conductor material to provide the required shape and the necessary physical strength, and uses a minimum amount of insulating material to provide only the insulating function. The bushing may be secured to the wall of the transformer tank by an externally mating clamp assembly, or may include threads formed on the inside portion of the bushing for engaging an internally threaded securing member.

Abstract translation: 本公开涉及一种用于罐式电变压器的衬套组件。 衬套使用最大量的导体材料来提供所需的形状和必要的物理强度，并且使用最少量的绝缘材料来提供绝缘功能。 衬套可以通过外部匹配的夹具组件固定到变压器箱的壁上，或者可以包括形成在衬套的内部部分上的螺纹，用于接合内螺纹固定构件。

公开(公告)号：US4125750A

公开(公告)日：1978-11-14

申请号：US725574

申请日：1976-09-22

Applicant: John P. Cochran

Inventor： John P. Cochran

IPC: H01H9/30 ,  H01H33/04

CPC classification number: H01H9/30

Abstract: A switch adapted to interrupt high voltage electrical currents by directing an extended curvilinear arc plasma path within a fluid insulating medium. The preferred embodiment of the switch is designed to store rotational energy in a motor spring, release the stored rotational energy, and latch an opposite motor spring all in the same movement of the operator's handle. The switch also includes a mechanical overdrive unit that permits the operator's handle to be rotated only a fraction of the total rotation travelled by the movable contact. In addition, an anti-stick or weld break feature is provided that manually initiates rotation of the movable contact in the event of adhesion between the contacts. Finally, a novel contact design is disclosed which aids in controlling the path of the arc plasma as well as providing multiple contact paths to insure that proper physical connecton is made between the contacts.

Abstract translation: 一种适于通过在液体绝缘介质内引导扩展的曲线等离子体路径来中断高电压电流的开关。 开关的优选实施例被设计成将旋转能量存储在电动机弹簧中，释放所存储的旋转能量，并且将操作者手柄的所有运动全部锁定在相对的电机弹簧上。 开关还包括机械过驱动单元，其允许操作者的把手仅旋转由可动触点行进的总旋转的一小部分。 此外，提供防粘或断裂特征，其在触点之间的粘附的情况下手动地启动可动触头的旋转。 最后，公开了一种新颖的接触设计，其有助于控制电弧等离子体的路径以及提供多个接触路径，以确保在触点之间形成适当的物理连接。

公开(公告)号：US2611508A

公开(公告)日：1952-09-23

申请号：US4218748

申请日：1948-08-03

Applicant: JOHN P COCHRAN COMPANY

Inventor： BROWN JOHN W

IPC: B44D3/12 ,  B65D25/20

CPC classification number: B65D25/20 ,  B44D3/128