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Individual
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Priority to ES0334669ApriorityCriticalpatent/ES334669A3/en
Publication of ES334669A3publicationCriticalpatent/ES334669A3/en
Perfeccionamientos in keypad-switch, characterized essentially by having a plate of insulating material that is carrier of as many conductive lines as points of embornamiento are foreseen, concurring each one of said lines to its respective point contactor that, in uniform succession is aligned, concentrically , around a hole through which protrudes the end of an axis that is carrier of a conductive, elastic and flexible sheet, from which its end runs through the circular crown formed by the succession of contact points which, in turn, they are separated from one another by means of appropriate open slits in the same support plate, this commutator system being completed, with a laminar tongue which abuts against the projecting end of the axis alluded to, as it is, incorporated into the electrical supply circuit. (Machine-translation by Google Translate, not legally binding)
ES0334669A1966-12-191966-12-19Improvements in buttons-switch. (Machine-translation by Google Translate, not legally binding)
ExpiredES334669A3
(en)
Improvements introduced in the manufacture of a thin sheet, in particular a single sheet of synthetic material (Machine-translation by Google Translate, not legally binding)