DE2438057A1 - Akustische alarmvorrichtung - Google Patents

Akustische alarmvorrichtung

Info

Publication number
DE2438057A1
DE2438057A1 DE2438057A DE2438057A DE2438057A1 DE 2438057 A1 DE2438057 A1 DE 2438057A1 DE 2438057 A DE2438057 A DE 2438057A DE 2438057 A DE2438057 A DE 2438057A DE 2438057 A1 DE2438057 A1 DE 2438057A1
Authority
DE
Germany
Prior art keywords
alarm device
driver amplifier
acoustic alarm
housing
semiconductor driver
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.)
Pending
Application number
DE2438057A
Other languages
German (de)
English (en)
Inventor
Louis Pierre Sweany
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.)
Duracell Inc USA
Original Assignee
PR Mallory and Co Inc
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 PR Mallory and Co Inc filed Critical PR Mallory and Co Inc
Publication of DE2438057A1 publication Critical patent/DE2438057A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Alarm Systems (AREA)
  • Electromechanical Clocks (AREA)
DE2438057A 1973-08-09 1974-08-07 Akustische alarmvorrichtung Pending DE2438057A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38694073A 1973-08-09 1973-08-09

Publications (1)

Publication Number Publication Date
DE2438057A1 true DE2438057A1 (de) 1975-03-06

Family

ID=23527734

Family Applications (2)

Application Number Title Priority Date Filing Date
DE2438057A Pending DE2438057A1 (de) 1973-08-09 1974-08-07 Akustische alarmvorrichtung
DE7426907U Expired DE7426907U (de) 1973-08-09 1974-08-07 Akustische alarmvorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE7426907U Expired DE7426907U (de) 1973-08-09 1974-08-07 Akustische alarmvorrichtung

Country Status (6)

Country Link
JP (1) JPS5046295A (enExample)
BR (1) BR7405910D0 (enExample)
DE (2) DE2438057A1 (enExample)
FR (1) FR2240489B3 (enExample)
GB (1) GB1435668A (enExample)
IT (1) IT1016769B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230060A1 (de) * 1981-07-31 1983-03-10 Sumitomo Electric Industries, Ltd., Osaka Piezoelektrischer summer
DE19626293A1 (de) * 1996-07-01 1998-01-08 Teves Gmbh Alfred Ultraschallwandler mit Kontaktglied
DE102008023982A1 (de) * 2008-05-16 2009-12-03 Vemac Gmbh & Co. Kg Schaltung zur Steuerung kapazitiv beeinflussbarer Lasten

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133075U (enExample) * 1974-04-16 1975-11-01
JPS50133074U (enExample) * 1974-04-16 1975-11-01
JPS50133076U (enExample) * 1974-04-16 1975-11-01
JPS5526955Y2 (enExample) * 1976-06-09 1980-06-27
CA1087004A (en) * 1976-08-11 1980-10-07 Michael J. Hampshire Sound generator
US4935909A (en) * 1986-12-10 1990-06-19 Emhart Industries Inc. Piezoelectric signaling device
CN118137177B (zh) * 2024-05-10 2024-06-28 国网山东省电力公司德州市陵城区供电公司 一种具有松动提示作用的电力接地柱

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6508091A (enExample) * 1965-06-24 1966-12-27
GB1219805A (en) * 1967-06-21 1971-01-20 Gen Electric Improvements in vacuum type circuit interrupter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230060A1 (de) * 1981-07-31 1983-03-10 Sumitomo Electric Industries, Ltd., Osaka Piezoelektrischer summer
DE19626293A1 (de) * 1996-07-01 1998-01-08 Teves Gmbh Alfred Ultraschallwandler mit Kontaktglied
US6163505A (en) * 1996-07-01 2000-12-19 Itt Manufacturing Enterprises, Inc. contact member for an ultrasonic transducer
DE102008023982A1 (de) * 2008-05-16 2009-12-03 Vemac Gmbh & Co. Kg Schaltung zur Steuerung kapazitiv beeinflussbarer Lasten

Also Published As

Publication number Publication date
GB1435668A (en) 1976-05-12
BR7405910D0 (pt) 1975-05-27
DE7426907U (de) 1977-11-03
FR2240489B3 (enExample) 1977-06-03
JPS5046295A (enExample) 1975-04-24
FR2240489A1 (enExample) 1975-03-07
IT1016769B (it) 1977-06-20

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