公开(公告)号：US5018993A

公开(公告)日：1991-05-28

申请号：US532550

申请日：1990-06-04

Applicant: Dwight H. Durham

Inventor： Dwight H. Durham

IPC: H01R4/48

CPC classification number: H01R4/48

Abstract: An improved wiring device terminal which provides a constant and predetermined compressive securing force on an electrical conductor wire being terminated on such device and which responds to thermally induced variations of the electrical conductor's dimensions.

Abstract translation: 一种改进的接线装置端子，其在电导体导线上提供恒定的和预定的压缩固定力，该电导线被终止在这种装置上，并且响应热导致的电导体尺寸的变化。

公开(公告)号：US3988666A

公开(公告)日：1976-10-26

申请号：US648215

申请日：1976-01-12

Applicant: Bobby A. Rowland ,  Dwight H. Durham ,  O. Leon Thomas

Inventor： Bobby A. Rowland ,  Dwight H. Durham ,  O. Leon Thomas

IPC: G01R31/02 ,  G01R31/08 ,  G01R31/12

CPC classification number: G01R31/083 ,  G01R31/022

Abstract: A fault locator system for multiplex cable, which includes a bare wire and three insulated wires stranded together. The system includes the separation of the bare conductor from the insulated conductors on a rewind line and the applying of an electric field (electromagnetic field) or dielectric field around the insulated conductors so that one can, by a signal or a bell, alarm, buzzer or the like, locate the fault and stop the rewind line at the fault location. The apparatus of the system includes a rotating disc structure which contains electrical conducting guides through which each insulated strand of the multiplex cable passes and is tested for insulation holes or faults. A high voltage signal is placed on the electrical conducting guides for the insulated strands by means of a brush electrode, which sets up an electrical field surrounding the portion of the insulated strand in the guide. By means of a spark tester connected to each insulated strand, a fault in the insulation is detected as it passes through the surrounding electromagnetic field. The rotating disc, which is synchronized with the cable pull-out capstan or take-up machine, untwists the cable on the entry side and retwists it on the exit side. The apparatus of the present invention thus separates the insulated, plexed cables, checks continuously for faults as the cable passes through it, and then puts the cable back into its plexed state. In one embodiment (FIGS. 1-3) the rotating wheel or disc is free floating and is driven by the cable as the cable is drawn through it, while in the second embodiment (FIGS. 4 and 5), the disc structure is positively driven by an internal drive mechanism.

Abstract translation: 多路复用电缆故障定位系统，包括裸线和三条绝缘线。 该系统包括将裸导体与回绕线路上的绝缘导体分开，以及在绝缘导体周围施加电场（电磁场）或电介质场，使得可以通过信号或铃声来报警蜂鸣器 定位故障，并在故障位置停止倒带线。 系统的装置包括旋转盘结构，其包含导电引导件，多路复用电缆的每个绝缘线通过该导电引导件，并且被测试用于绝缘孔或故障。 高电压信号通过刷电极放置在用于绝缘股线的导电引导件上，刷电极围绕引导件中的绝缘股线的部分设置电场。 通过与每个绝缘线连接的火花试验机，当绝缘线穿过周围的电磁场时，会检测到绝缘故障。 与电缆拉出绞盘或卷取机同步的旋转盘解除对入口侧的电缆的扭转，并在出口侧重新卷曲。 因此，本发明的装置分离绝缘的电缆，当电缆穿过电缆时，连续检查故障，然后将电缆重新置于其复原状态。 在一个实施例（图1-3）中，旋转轮或盘是自由浮动的，并且当电缆被拉过时由电缆驱动，而在第二实施例（图4和图5）中，盘结构是正的 由内部驱动机构驱动。