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CA1000080A - Pulsing bell - Google Patents

Pulsing bell

Info

Publication number
CA1000080A
CA1000080A CA197,249A CA197249A CA1000080A CA 1000080 A CA1000080 A CA 1000080A CA 197249 A CA197249 A CA 197249A CA 1000080 A CA1000080 A CA 1000080A
Authority
CA
Canada
Prior art keywords
pulsing
bell
pulsing bell
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
CA197,249A
Other versions
CA197249S (en
Inventor
Nicholas W.F. Bird
Chang-Whan Kim
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.)
SPX Technologies Inc
Original Assignee
General Signal Corp
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 General Signal Corp filed Critical General Signal Corp
Application granted granted Critical
Publication of CA1000080A publication Critical patent/CA1000080A/en
Expired 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
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064—Operating or striking mechanisms therefor
    • G10K1/065—Operating or striking mechanisms therefor for timed or repeated operation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Air Bags (AREA)
  • Sewing Machines And Sewing (AREA)
CA197,249A 1973-05-21 1974-04-10 Pulsing bell Expired CA1000080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US362643A US3872471A (en) 1973-05-21 1973-05-21 Pulsing bell having rectifier circuit

Publications (1)

Publication Number Publication Date
CA1000080A true CA1000080A (en) 1976-11-23

Family

ID=23426943

Family Applications (1)

Application Number Title Priority Date Filing Date
CA197,249A Expired CA1000080A (en) 1973-05-21 1974-04-10 Pulsing bell

Country Status (3)

Country Link
US (1) US3872471A (en)
CA (1) CA1000080A (en)
GB (1) GB1419217A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184594A (en) * 1975-01-21 1976-07-23 Matsushita Electric Works Ltd Denshichaimu

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460136A (en) * 1965-11-23 1969-08-05 Vartan M Jambazian Electronic sound signalling device
US3618079A (en) * 1968-06-20 1971-11-02 Sparton Corp Solid state interrupter system

Also Published As

Publication number Publication date
US3872471A (en) 1975-03-18
GB1419217A (en) 1975-12-24

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