公开(公告)号：US4464621A

公开(公告)日：1984-08-07

申请号：US365962

申请日：1982-04-06

Applicant: Hubert Prigent ,  Maurice Roudeau ,  Michel Daniel

Inventor： Hubert Prigent ,  Maurice Roudeau ,  Michel Daniel

IPC: G01R31/08 ,  H04M3/30 ,  G01R31/02

CPC classification number: G01R31/085 ,  H04M3/301

Abstract: A test device detects current in a two-wire line, such as a telephone loop, to enable a short circuit or the like to be determined at a remote location. The current at a predetermined line location is sensed by a simple switch means. Switching of the line, such as a working line, is controlled with another two-wire line, such as a spare line. Control is provided to select one of two loads terminating the line. The test device is connected in series on one of the line wires. The test device has a constant ohmic value in a low current range when the in-line current is less than a predetermined current value. The ohmic value increases sharply to a higher value in a high current range when the in-line current is greater than the predetermined current value. The test device comprises a relay having an operate coil and a resting contact which are series-connected between the terminals of the test device, and a resistor connected in parallel with the contact.

Abstract translation: 测试装置检测诸如电话回路的双线线路中的电流，以便在远程位置确定短路等。 通过简单的开关装置感测预定线位置处的电流。 线路（如工作线路）的切换由另一条双线线路（如备用线路）控制。 提供控制以选择终止线路的两个负载中的一个。 测试装置串联在其中一条线路上。 当直流电流小于预定电流值时，测试装置在低电流范围内具有恒定的欧姆值。 当在线电流大于预定电流值时，欧姆值急剧上升到高电流范围内的较高值。 测试装置包括具有串联连接在测试装置的端子之间的操作线圈和静止触点的继电器以及与触点并联连接的电阻器。

公开(公告)号：US4348570A

公开(公告)日：1982-09-07

申请号：US148413

申请日：1980-05-09

Applicant: Francois J. Haussonne ,  Guy Moisan ,  Hubert Prigent

Inventor： Francois J. Haussonne ,  Guy Moisan ,  Hubert Prigent

IPC: H01H1/08 ,  H01H29/04 ,  H01H29/28 ,  H01H29/22 ,  H01H29/00

CPC classification number: H01H29/28 ,  H01H1/08 ,  H01H29/04

Abstract: This electric contact device is a variant of those described in Anizan et al., French Pat. No. 2,385,208.The composite unit formed by the insulating coating and the conducting material form a single insulator-conductor unit. The electrical duct penetrates the insulation to reach the conductor. The composite unit is made of enamelled metal, a metal on which insulation is deposited by "shoopage" (a process apparently involving the deposit of a vaporized metal) or of a cermet (ceramic alloy) from whose surface the metallic phase has been eliminated. The duct may be cylindrical, a groove, or grooves crossing at a right angle.Usable for many types of electric contact.

Abstract translation: 该电接触装置是Anizan等人，French Pat。 第2,385,208号。 由绝缘涂层和导电材料形成的复合单元形成单个绝缘体导体单元。 电气管道穿过绝缘体到达导体。 复合单元由搪瓷金属制成，金属通过“刮擦”（显然涉及蒸发金属沉积的方法）或金属陶瓷（陶瓷合金）从金属相被表面去除而沉积在其上。 管道可以是直角交叉的圆柱形，凹槽或凹槽。 适用于多种类型的电接触。

公开(公告)号：US4039881A

公开(公告)日：1977-08-02

申请号：US585499

申请日：1975-06-10

Applicant: Emile F. Le Coquil ,  Hubert Prigent ,  Guy Gerard

Inventor： Emile F. Le Coquil ,  Hubert Prigent ,  Guy Gerard

IPC: H01J17/49 ,  H01J61/06

CPC classification number: H01J17/49

Abstract: A gas discharge display screen with a self-scanning function is described herein. All the electrodes are positioned coplanary on a single surface of a rear insulating plate. First and second pluralities of parallel electrodes connected respectively independently accomplish respectively the scanning and displaying functions. A third plurality of parallel electrodes perpendicular to the first and second pluralities of electrodes cooperates with a particular electrode for preionizing the first gas cells of the matrix screen lines.