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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EISENHOLFER HELMAN
Original Assignee
EISENHOLFER HELMAN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EISENHOLFER HELMANfiledCriticalEISENHOLFER HELMAN
Priority to ES0053527UpriorityCriticalpatent/ES53527Y/en
Publication of ES53527UpublicationCriticalpatent/ES53527U/en
Application grantedgrantedCritical
Publication of ES53527YpublicationCriticalpatent/ES53527Y/en
Devices Affording Protection Of Roads Or Walls For Sound Insulation
(AREA)
Abstract
"NEW ACOUSTIC ALARM", characterized by being constituted by a body that houses inside a mobile support, ascending or descending, mounted on an insulator, which holds an electromagnet and the support spring of the hammer, to which is attached a plate that , when attracted, makes contact with a bridge interrupting the action of the electromagnet, so that the hammer acquires a very fast vibratory movement, hitting on a steel membrane, undulated in concentric circles, which produces the sound, graduating the intensity of it by the movement of the support and tightening more or less the body to the cover, provided with windows, which supports between them the membrane in conjunction with a pressure washer. (Machine-translation by Google Translate, not legally binding)
ES0053527U1956-04-041956-04-04
New acoustic alarm
ExpiredES53527Y
(en)