Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Talleres Afa SA
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Talleres Afa SA
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Publication date
Application filed by Talleres Afa SAfiledCriticalTalleres Afa SA
Priority to ES265349ApriorityCriticalpatent/ES265349A3/en
Publication of ES265349A3publicationCriticalpatent/ES265349A3/en
Improvements in vibrating sound devices that are characterized by fixing inside the air compression chamber a vibratory element as a retained membrane at its periphery which divides the said chamber into two compartments, one of which communicates with the means of expansion of the sound waves produced by the membrane, which is provided with a feeder duct for the pressurized air that reaches the compartment in question, while the second compartment carries inside it a circular piece adjustable at its center and provided with a peripheral rim supported on the corresponding side of the vibratory membrane. Of the peripheral retention area of the latter whose circular piece is pressed by the side opposite to that supported on the membrane by a cylindrical hollow central part and threaded to the closing wall of the repeated chamber. (Machine-translation by Google Translate, not legally binding)
ES265349A1961-03-071961-03-07Improvements in the sound vibrator devices (Machine-translation by Google Translate, not legally binding)
ExpiredES265349A3
(en)
Improvements introduced in the construction of elastic rubber feet or similar elastic material, especially for microphone supports. (Machine-translation by Google Translate, not legally binding)