FERREED CONTACT Russian patent published in 1994 - IPC

FIELD: switching elements of automatic control circuits. SUBSTANCE: ferreed contact has hermetically sealed envelope two contact cores secured at opposite ends of envelope and bent to form contact sections whose planes are arranged at angle of 90 degrees to planes of contact cores, are parallel relative to each other and are directed along longitudinal axis of hermetically sealed envelope. Length of arm of one of contact cores is increased with simultaneous decrease of other arm of contact core by the same value. Ratio of lengths of contact cores is 1.415. Contact sections of cores are corrugated. EFFECT: enhanced reliability owing to prevention of sticking and baking of contact sections, elimination of dynamic noises and chatter. 2 dwg