Societe Chauvin Arnoux

Societe En Commandite Par Actions Dite: Chauvin Arnoux

Relais Signalisation Automatisme, Societe Anonyme

Bernard Michel

Daniel Arnoux

Claude Genter

Gerard N Koehler

Jean Aguettaz

Alain Berthelot

Andre Leconte

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.

Stake notably for measuring the electrical resistances of ground

An electromagnetic relay comprising a base of insulating material carrying stationary and movable contacts and output lugs, and a motor assembly, the latter comprising a right-angled yoke, a core with its coil, crimped to the inner face of a first one of the two flanges of the right-angled yoke, and an armature pivotally mounted to the free end of the second flange of said yoke and having bent arms operable to actuate the movable contacts when the base is fixed to the outer face the second flange and the coil is energized. The coil has a spool or frame with at least one end flange provided with metal tongues for coil connection extending towards the base and passing through apertures in the second flange of the yoke, said tongues resiliently engaging inner ends of associated ones of said output lugs.

Connections between a motor assembly and a contact unit base of an

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.

Multiple magnetic flywheel driven by a centrifugal clutch

Electromagnetic relay comprising resilient U-shaped tongues having each a pair of arms resiliently engaging fixed contact studs for electrically interconnecting them, and a movable control member adapted to move one of the arms of each tongue away from the corresponding contact stud, for breaking the electric connection. This relay further comprises a second control member movable in a direction opposite to that of the first control member and adapted to co-operate with the first control member for clamping the U-shaped tongue and move the two arms thereof away from the relevant contact studs.

Growing community of inventors

Conflans St Honorine, France

Bernard Michel