AU510393B2 - Siren and P. A. system - Google Patents

Siren and P. A. system

Info

Publication number
AU510393B2
AU510393B2 AU31286/77A AU3128677A AU510393B2 AU 510393 B2 AU510393 B2 AU 510393B2 AU 31286/77 A AU31286/77 A AU 31286/77A AU 3128677 A AU3128677 A AU 3128677A AU 510393 B2 AU510393 B2 AU 510393B2
Authority
AU
Australia
Prior art keywords
siren
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
AU31286/77A
Other versions
AU3128677A (en
Inventor
Roy W. Lock
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 AU31286/77A priority Critical patent/AU510393B2/en
Publication of AU3128677A publication Critical patent/AU3128677A/en
Application granted granted Critical
Publication of AU510393B2 publication Critical patent/AU510393B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/46—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
    • 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
AU31286/77A 1976-12-06 1976-12-06 Siren and P. A. system Expired AU510393B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU31286/77A AU510393B2 (en) 1976-12-06 1976-12-06 Siren and P. A. system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU31286/77A AU510393B2 (en) 1976-12-06 1976-12-06 Siren and P. A. system

Publications (2)

Publication Number Publication Date
AU3128677A AU3128677A (en) 1979-06-14
AU510393B2 true AU510393B2 (en) 1980-06-26

Family

ID=3719004

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31286/77A Expired AU510393B2 (en) 1976-12-06 1976-12-06 Siren and P. A. system

Country Status (1)

Country Link
AU (1) AU510393B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU635966B2 (en) * 1990-05-25 1993-04-08 Federal Signal Corporation Smart siren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU635966B2 (en) * 1990-05-25 1993-04-08 Federal Signal Corporation Smart siren

Also Published As

Publication number Publication date
AU3128677A (en) 1979-06-14

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