CA1000399A - Sonic signal generator - Google Patents

Sonic signal generator

Info

Publication number
CA1000399A
CA1000399A CA202,620A CA202620A CA1000399A CA 1000399 A CA1000399 A CA 1000399A CA 202620 A CA202620 A CA 202620A CA 1000399 A CA1000399 A CA 1000399A
Authority
CA
Canada
Prior art keywords
signal generator
sonic signal
sonic
generator
signal
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
CA202,620A
Other versions
CA202620S (en
Inventor
David L. Livermore
D. Frederic Proctor
Peter Skelly
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.)
PROCTOR AND ASSOCIATES Co
Original Assignee
PROCTOR AND ASSOCIATES Co
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 PROCTOR AND ASSOCIATES Co filed Critical PROCTOR AND ASSOCIATES Co
Application granted granted Critical
Publication of CA1000399A publication Critical patent/CA1000399A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
CA202,620A 1973-12-12 1974-06-17 Sonic signal generator Expired CA1000399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US424162A US3921016A (en) 1973-12-12 1973-12-12 Sonic signal generator and housing

Publications (1)

Publication Number Publication Date
CA1000399A true CA1000399A (en) 1976-11-23

Family

ID=23681703

Family Applications (1)

Application Number Title Priority Date Filing Date
CA202,620A Expired CA1000399A (en) 1973-12-12 1974-06-17 Sonic signal generator

Country Status (2)

Country Link
US (1) US3921016A (en)
CA (1) CA1000399A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309576A (en) * 1979-07-16 1982-01-05 Heath Consultants Incorporated Listening device for localizing underground water leakages
US4302695A (en) * 1979-11-16 1981-11-24 General Electric Company Support arrangement for a flexible sound generating diaphragm
US4330729A (en) * 1980-07-30 1982-05-18 General Electric Company Locking support arrangement for a flexible sound-generating diaphragm
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
US4580251A (en) * 1983-11-09 1986-04-01 Honeywell Inc. Ultrasonic distance sensor
US4918738A (en) * 1988-12-05 1990-04-17 Federal Signal Corporation Structural assembly for housing an acoustical system
EP2076061B1 (en) * 2006-11-27 2019-01-30 Murata Manufacturing Co. Ltd. Ultrasonic transducer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787671A (en) * 1952-10-06 1957-04-02 Schall Technik Dr Ing Karl Sch Microphone arrangement
US3331970A (en) * 1964-09-29 1967-07-18 Honeywell Inc Sonic transducer
DE1462236B2 (en) * 1965-10-25 1971-07-22 Sennheiser electronic Dr Ing Fritz Sennheiser, 3002 Bissendorf HIGH HEIGHT RESONATOR FOR A MICROPHONE SYSTEM
AT277339B (en) * 1966-08-19 1969-12-29 Akg Akustische Kino Geraete Microphone with directional characteristic and a device for changing this directional characteristic
CA941949A (en) * 1969-06-25 1974-02-12 Automation Industries Air coupled nondestructive material tester with reflected wave cancellation
NL7001421A (en) * 1970-01-31 1971-08-03
US3761956A (en) * 1970-10-01 1973-09-25 Nittan Co Ltd Sound generating device
JPS4963860U (en) * 1972-06-26 1974-06-04
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
US3873866A (en) * 1973-11-05 1975-03-25 Sontrix Piezoelectric transducer assembly and method for generating an umbrella shaped radiation pattern

Also Published As

Publication number Publication date
US3921016A (en) 1975-11-18

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