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FR2619947B1 - FOG HORN FOR AUTOMATIC PHONE SIGNALS - Google Patents

FOG HORN FOR AUTOMATIC PHONE SIGNALS

Info

Publication number
FR2619947B1
FR2619947B1 FR8712229A FR8712229A FR2619947B1 FR 2619947 B1 FR2619947 B1 FR 2619947B1 FR 8712229 A FR8712229 A FR 8712229A FR 8712229 A FR8712229 A FR 8712229A FR 2619947 B1 FR2619947 B1 FR 2619947B1
Authority
FR
France
Prior art keywords
phone signals
automatic phone
fog horn
fog
horn
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.)
Expired
Application number
FR8712229A
Other languages
French (fr)
Other versions
FR2619947A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8712229A priority Critical patent/FR2619947B1/en
Publication of FR2619947A1 publication Critical patent/FR2619947A1/en
Application granted granted Critical
Publication of FR2619947B1 publication Critical patent/FR2619947B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/023—Driving circuits for generating signals continuous in time and stepped in amplitude, e.g. square wave, 2-level signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B45/00—Arrangements or adaptations of signalling or lighting devices
    • B63B45/08—Arrangements or adaptations of signalling or lighting devices the devices being acoustic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Burglar Alarm Systems (AREA)
FR8712229A 1987-09-02 1987-09-02 FOG HORN FOR AUTOMATIC PHONE SIGNALS Expired FR2619947B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8712229A FR2619947B1 (en) 1987-09-02 1987-09-02 FOG HORN FOR AUTOMATIC PHONE SIGNALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8712229A FR2619947B1 (en) 1987-09-02 1987-09-02 FOG HORN FOR AUTOMATIC PHONE SIGNALS

Publications (2)

Publication Number Publication Date
FR2619947A1 FR2619947A1 (en) 1989-03-03
FR2619947B1 true FR2619947B1 (en) 1989-11-17

Family

ID=9354593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8712229A Expired FR2619947B1 (en) 1987-09-02 1987-09-02 FOG HORN FOR AUTOMATIC PHONE SIGNALS

Country Status (1)

Country Link
FR (1) FR2619947B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807864A1 (en) * 2000-04-14 2001-10-19 Willy Noerens AUTOMATIC FOG HORN
GB2388995B (en) * 2002-05-23 2004-06-30 Gent Ltd Improvements in and relating to alarms
GB2407897B (en) 2002-07-31 2006-01-18 Tsx Products Corp A controller for automatically manipulating a horn signal for navigational purposes
CN107585270A (en) * 2016-07-18 2018-01-16 左迁 Ship sound control device and ship sound control system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138795A (en) * 1959-08-07 1964-06-23 Wallace & Tiernan Inc Electronic audible horn
US4382251A (en) * 1980-09-23 1983-05-03 Casio Computer Co., Ltd. Envelope control device for piezoelectric buzzer
US4388614A (en) * 1980-12-15 1983-06-14 The United States Of America As Represented By The Secretary Of The Air Force Automatically sequenced signaling system
DE3438464A1 (en) * 1984-10-19 1986-04-24 Petersen, Fred, Dipl.-Ing., 2000 Barsbüttel Signal transmitter apparatus for watercraft

Also Published As

Publication number Publication date
FR2619947A1 (en) 1989-03-03

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Legal Events

Date Code Title Description
ST Notification of lapse