公开(公告)号：US4420918A

公开(公告)日：1983-12-20

申请号：US312892

申请日：1981-10-19

Applicant: Daniel Arnoux ,  Andre Leconte ,  Claude Genter ,  Bernard Michel

Inventor： Daniel Arnoux ,  Andre Leconte ,  Claude Genter ,  Bernard Michel

IPC: A01K3/00 ,  E04H12/22 ,  H01R4/66 ,  E02D5/74

CPC classification number: H01R4/66 ,  A01K3/005 ,  E04H12/2223

Abstract: A stake is provided in the form of a smooth cylindrical metal rod which has a point at its lower end and to which is welded a screw thread formed by a helical spring having a polygonal cross-section, preferably a square section, which is welded to the rod at a limited number of spaced-apart points, at least a part of the spring being thus free to move with respect to the rod. Preferably, only the lower end of the spring is welded to the rod. The stake is more especially, but not exclusively, usable for measuring the electrical resistances of ground connections.

Abstract translation: 提供了一种光滑的圆柱形金属棒的形式，其在其下端具有点，并且焊接有由螺旋弹簧形成的螺纹，螺旋弹簧具有多边形横截面，优选为正方形截面，该螺旋弹簧被焊接到 杆在有限数量的间隔开的点处，弹簧的至少一部分因此相对于杆自由移动。 优选地，只有弹簧的下端焊接到杆上。 该桩更特别地但不排他地可用于测量接地连接的电阻。

公开(公告)号：US4303843A

公开(公告)日：1981-12-01

申请号：US169778

申请日：1980-07-17

Applicant: Daniel Arnoux ,  Gerard Koehler ,  Andre Leconte ,  Claude Genter ,  Bernard Michel

Inventor： Daniel Arnoux ,  Gerard Koehler ,  Andre Leconte ,  Claude Genter ,  Bernard Michel

IPC: H02K21/22 ,  H02K21/48

CPC classification number: H02K21/48 ,  H02K21/225

Abstract: A magnetic flywheel for a manually-driven magneto megohmmeter with step variable voltage comprising a rotor formed by a ring of magnetic material carrying permanent magnets, and a stator, disposed inwardly of the rotor and formed by an assembly of magnetic circuits each having a C-shape with a coil wound around the central portion thereof and with two pole surfaces at the ends. In order to reduce the starting torque, the number of pairs of permanent magnets is one less than the number of magnetic circuits, and the angular distance between the pole surfaces of one magnetic circuit is equal to the angular distance between two adjacent permanent magnets. Also, the arc length of each pole surface of a magnetic circuit is substantially equal to half the angular distance between two adjacent permanent magnets.

Abstract translation: 一种用于具有阶跃可变电压的手动驱动的磁电机的磁性飞轮，其包括由承载永磁体的磁性材料环形成的转子和定子，所述转子设置在转子的内部，并由各自具有C- 具有绕其中心部分缠绕的线圈并且在端部具有两个极表面的形状。 为了减小启动扭矩，永磁体对数比磁路数少一个，一个磁路的极面之间的角距离等于两个相邻的永磁体之间的角距离。 此外，磁路的每个磁极表面的电弧长度基本上等于两个相邻永磁体之间的角距离的一半。