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Priority to ES0264656ApriorityCriticalpatent/ES264656A1/es
Publication of ES264656A1publicationCriticalpatent/ES264656A1/es
Perfeccionamiento en el procedimiento de obtención de objetos huecos por moldeo, que se caracterizan esencialmente porque en el centro del canal de salida de la masa pastosa de las máquinas de extrusión se dispone una aguja perforada por cuyo interior puede inyectarse una corriente de aire comprimido, teniendo dicha aguja en su extremo inferior el fileteado preciso para recibir y retener durante la salida de la masa una pieza en forma de casquillo perforada interiormente.
ES0264656A1961-02-041961-02-04Perfeccionamientos en el procedimiento de obtenciën de objetos huecos por moldeo
ExpiredES264656A1
(es)