Comptoir Lyon-alemand Louyot

Regie Nationale Des Usines Renault

Societe Anonyme Dite Automobiles Peugeot

Engelhard-clal S.a.s.

Claude Lambert

Jean-Paul Guerlet

Henri Arnaud

Roger Lacroix

Dan Weber

Henri Milliot

Manfred Wacker

Georges Devaux

Sophie Coupez

Martial Hublin

Wires incorporating a helical component, assemblies thereof, and use of

The present invention relates to novel materials based on silver and tin oxide for the production of electrical contacts as well as the electrical contacts thus produced. According to the invention, these materials contain at least 6% by weight of tin oxide and from 0.02 to 5% by weight of tellurium oxide; the total content by weight of metal oxides, with the exclusion of tellurium oxide, does not exceed 15%, the balance being made up by silver. Application: manufacture of electrical equipment.

Material based on silver and tin oxide for the production of electrical

Element for detecting the presence of combustible gases in a gaseous atmosphere containing at least one oxidizing agent, comprising a microporous support consisting essentially of a mixture of gamma-and/or eta-alumina and refractory fibres, a catalyst layer based on a metal or an oxide of a metal from the family of the platinoids, located on at least a part of the surface of the microporous support, and a filament based on platinum, of which at least a part is wound round the said support.

Element for detecting the presence of combustible gases in a gaseous

An arrangement for controlling the recirculation of exhaust gases within internal combustion engines, includes a recycling system of conduits connecting the engine exhaust manifold to the main inlet manifold of the carburetion system and having a recirculating valve interposed within such circuit. The obturator of the recirculation valve has a truncated-cone configuration of such design that the increase in the variable area of the opening between the stopper or obturator and its seat is a function of the engine speed and load. In recycling the exhaust gases, the invention serves as an antipollution means for the exhaust gases of internal combustion engines.

Arrangement for controlling the recirculation of exhaust gas in internal

Growing community of inventors

Paris, France

Claude Lambert