ES225934U - Electronic acoustic warning system. (Machine-translation by Google Translate, not legally binding) - Google Patents

Electronic acoustic warning system. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES225934U
ES225934U ES1977225934U ES225934U ES225934U ES 225934 U ES225934 U ES 225934U ES 1977225934 U ES1977225934 U ES 1977225934U ES 225934 U ES225934 U ES 225934U ES 225934 U ES225934 U ES 225934U
Authority
ES
Spain
Prior art keywords
tongue
membrane
coil
whose
box
Prior art date
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.)
Granted
Application number
ES1977225934U
Other languages
Spanish (es)
Other versions
ES225934Y (en
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.)
Sidevan SA
Original Assignee
Sidevan SA
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 Sidevan SA filed Critical Sidevan SA
Priority to ES1977225934U priority Critical patent/ES225934Y/en
Publication of ES225934U publication Critical patent/ES225934U/en
Application granted granted Critical
Publication of ES225934Y publication Critical patent/ES225934Y/en
Expired legal-status Critical Current

Links

Landscapes

  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

Electronic acoustic warning device, characterized by comprising a closed insulating box in which a coil is housed on one of the sides of whose reel is fixed a printed circuit board that is traversed by the fixed core of the coil, inside the whose box is disposed a membrane in which an elastic intermediate tongue is formed that supports a magnet facing the core of the coil and of the same polarity, whose membrane is fixed, with the interposition of a separating frame through which the tongue passes over the tongue. A vibratory membrane joined together the front bottom of the box from which said vibrating membrane is separated by a recess of said bottom, whose magnet support tongue has on its opposite face to which the magnet is attached a percussion projection which, when oscillating the elastic tongue when the coil is excited, hits the vibratory membrane that determines the warning sound which has pass through the open uras provided in the bottom of the box. (Machine-translation by Google Translate, not legally binding)
ES1977225934U 1977-01-25 1977-01-25 ELECTRONIC ACOUSTIC WARNING DEVICE. Expired ES225934Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES1977225934U ES225934Y (en) 1977-01-25 1977-01-25 ELECTRONIC ACOUSTIC WARNING DEVICE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1977225934U ES225934Y (en) 1977-01-25 1977-01-25 ELECTRONIC ACOUSTIC WARNING DEVICE.

Publications (2)

Publication Number Publication Date
ES225934U true ES225934U (en) 1977-03-16
ES225934Y ES225934Y (en) 1977-07-16

Family

ID=8387789

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1977225934U Expired ES225934Y (en) 1977-01-25 1977-01-25 ELECTRONIC ACOUSTIC WARNING DEVICE.

Country Status (1)

Country Link
ES (1) ES225934Y (en)

Also Published As

Publication number Publication date
ES225934Y (en) 1977-07-16

Similar Documents

Publication Publication Date Title
JPS5388718A (en) Sealed head phone
GB1357403A (en) Electroacoustic transducer
CH636494B (en) CONTROL DEVICE FOR THE FUNCTIONS OF AN ELECTRONIC WATCH.
CH629067B (en) ACOUSTIC ALARM WITH ELECTRONIC EXCITATION.
US3263551A (en) Electronic metronome
US3002187A (en) Door chime
CH634455B (en) WATCH INCLUDING AN ELECTRO-ACOUSTIC VIBRATOR.
JPS5430071A (en) Electronic watch
JPS51117615A (en) Portable small-sized speaker
JPS53147526A (en) Speaker device
CH617818B (en) WATCH, EQUIPPED WITH AN ALARM SIGNAL GENERATING DEVICE, THE ACOUSTIC INTENSITY OF WHICH VARIES GRADUALLY.
SU1758668A1 (en) Vocal slat for reed electric musical instrument
JPS5364501A (en) Acoustic device
ES445320A1 (en) Acoustic screen for reproduction of high-fidelity sounds. (Machine-translation by Google Translate, not legally binding)
JPS56154690A (en) Compact speaker case to be worn on wrist
GB1246551A (en) Alarm wrist-watch
JPS5325466A (en) Small electronic apparatus provided with sound producing func tions
JPS55116292A (en) Sound generating watch
JPS5576718A (en) Automotive alarm device
GB723140A (en) Improvements in or relating to magneto-strictive transducers
GB354057A (en) An improved electric horn or sound producing device
JPS56149025A (en) Resonator for sounding body built-in camera
JPS638696U (en)
ES225835U (en) Perfected toy electronic guitar equipment. (Machine-translation by Google Translate, not legally binding)
GB777673A (en) Acoustic transmitting device