GB1376433A - Electric sound-producing device - Google Patents

Electric sound-producing device

Info

Publication number
GB1376433A
GB1376433A GB1031071*[A GB1031071A GB1376433A GB 1376433 A GB1376433 A GB 1376433A GB 1031071 A GB1031071 A GB 1031071A GB 1376433 A GB1376433 A GB 1376433A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
cap
nov
flat portion
producing device
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
GB1031071*[A
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 GB1031071*[A priority Critical patent/GB1376433A/en
Priority to NL7115306A priority patent/NL7115306A/xx
Priority to CA127,002A priority patent/CA986754A/en
Priority to US00196032A priority patent/US3846792A/en
Priority to DE2155472A priority patent/DE2155472C3/en
Priority to SE7114192A priority patent/SE390462B/en
Priority to IT53945/71A priority patent/IT944816B/en
Priority to FR7139972A priority patent/FR2113679A5/fr
Priority to JP9247271A priority patent/JPS5518918B1/ja
Publication of GB1376433A publication Critical patent/GB1376433A/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
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • 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
    • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
    • B06B1/0284—Driving circuits for generating signals continuous in time for generating multiple frequencies with consecutive, i.e. sequential generation, e.g. with frequency sweep
    • 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
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/52—Electrodynamic transducer
    • B06B2201/53—Electrodynamic transducer with vibrating magnet or coil

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Reciprocating Pumps (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

1376433 Diaphragm vibrators R A ABSALOM 4 Nov 1971 [7 Nov 1970 20 April 1971] 53087/70 and 10310/71 Heading G5J [Also in Division H3] An electric sound-producing device comprises a resilient diaphragm of ferromagnetic material which is made to vibrate under the action of an electromagnet supplied from an electronic oscillator with short duration pulses at a repetition frequency substantially less than the natural frequency of the diaphragm. The diaphragm 15, Fig. 1, contains a central flat portion 16 and an external rib 19 which clips into an internal groove in the cap 11. The body 10 and cap 11 can be adjusted to give the required airgap between the flat portion 16 of the diaphragm and the electromagnet core 22 by means of abutments 12 on the body and inclined ramp faces in the cap. In alternative embodiments the cap can be replaced by an acoustic resonator or by a horn. Each embodiment of the device can employ any one of four circuits to produce the current waveform, either in the form of a continuous output or, if controlled by a multivibrator or sawtooth pulse generator, in the form of an intermittent output in the coil windings, said windings forming an integral part of the oscillator circuit.
GB1031071*[A 1970-11-07 1971-04-20 Electric sound-producing device Expired GB1376433A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB1031071*[A GB1376433A (en) 1970-11-07 1971-04-20 Electric sound-producing device
NL7115306A NL7115306A (en) 1970-11-07 1971-11-05
CA127,002A CA986754A (en) 1970-11-07 1971-11-05 Electric sound-producing device
US00196032A US3846792A (en) 1970-11-07 1971-11-05 Electric sound-producing device
DE2155472A DE2155472C3 (en) 1970-11-07 1971-11-08 Sound generator
SE7114192A SE390462B (en) 1970-11-07 1971-11-08 ELECTRIC SOUND BEACHING APPLIANCE
IT53945/71A IT944816B (en) 1970-11-07 1971-11-08 ELECTRICAL DEVICE TO PRODUCE SOUNDS
FR7139972A FR2113679A5 (en) 1970-11-07 1971-11-08
JP9247271A JPS5518918B1 (en) 1971-04-20 1971-11-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5308770 1970-11-07
GB1031071*[A GB1376433A (en) 1970-11-07 1971-04-20 Electric sound-producing device

Publications (1)

Publication Number Publication Date
GB1376433A true GB1376433A (en) 1974-12-04

Family

ID=26247442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1031071*[A Expired GB1376433A (en) 1970-11-07 1971-04-20 Electric sound-producing device

Country Status (8)

Country Link
US (1) US3846792A (en)
CA (1) CA986754A (en)
DE (1) DE2155472C3 (en)
FR (1) FR2113679A5 (en)
GB (1) GB1376433A (en)
IT (1) IT944816B (en)
NL (1) NL7115306A (en)
SE (1) SE390462B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472451A (en) * 1973-06-12 1977-05-04 Int Standard Electric Corp Ultrasonic transmitter
US3945004A (en) * 1974-07-11 1976-03-16 Projects Unlimited, Inc. High efficiency buzzer
USRE29701E (en) * 1976-01-26 1978-07-11 Stewart-Warner Corporation Timed buzzer
US4003043A (en) * 1976-01-26 1977-01-11 Stewart-Warner Corporation Timed buzzer
DE2647439C2 (en) * 1976-10-21 1982-10-21 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Sound signal generators, in particular for motor vehicles
JPS5435777A (en) * 1977-08-25 1979-03-16 Seiko Epson Corp Alarm watch
US4251807A (en) * 1979-03-08 1981-02-17 Pickering & Company Miniature buzzer
US4297538A (en) * 1979-07-23 1981-10-27 The Stoneleigh Trust Resonant electroacoustic transducer with increased band width response
US4335418A (en) * 1980-10-27 1982-06-15 General Signal Corporation Electronic interrupter
DE3442483A1 (en) * 1984-11-22 1986-05-22 Robert Bosch Gmbh, 7000 Stuttgart Method for solid-state control of the operating frequency of the oscillating armature of an electromagnetic warning horn
US4689609A (en) * 1985-12-04 1987-08-25 Ko Clyde M A Electronic horn with spiral deflecting walls coupled to a truncated cone structure
US4967871A (en) * 1986-10-16 1990-11-06 Pioneer Electronic Corporation Body-sensible acoustic device
US5160913A (en) * 1987-10-19 1992-11-03 Sparton Corporation Electric horn with solid state driver
US5049853A (en) * 1987-10-19 1991-09-17 Sparton Corporation Electric horn with solid state driver
US5596477A (en) * 1993-05-03 1997-01-21 Faraday, Inc. Contactless signaling device
US5659288A (en) * 1995-07-28 1997-08-19 Ford Motor Company Method for setting horn air gap
ITVI20010270A1 (en) * 2001-12-28 2003-06-28 Stebel Spa ELECTRO-PNEUMATIC ACOUSTIC WARNING
JP2004196626A (en) * 2002-12-20 2004-07-15 Sumitomo Chem Co Ltd Method for producing titanium oxide
US8687835B2 (en) 2011-11-16 2014-04-01 Wolo Mfg. Corp. Diaphragm for an electropneumatic horn system
US7802535B2 (en) * 2007-09-06 2010-09-28 Wolo Mfg. Corp. Electropneumatic horn system
WO2009032442A1 (en) 2007-09-06 2009-03-12 Wolo Mfg.Corp. Electropneumatic horn system
US9024736B2 (en) * 2012-07-03 2015-05-05 Fisa Italia S.R.L. Electro-pneumatic sound alarm
US10609474B2 (en) 2017-10-18 2020-03-31 xMEMS Labs, Inc. Air pulse generating element and manufacturing method thereof
US10425732B1 (en) * 2018-04-05 2019-09-24 xMEMS Labs, Inc. Sound producing device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125752A (en) * 1964-03-17 burns
US3137846A (en) * 1958-12-10 1964-06-16 Kenneth Tower Electronic sirens
CH409715A (en) * 1964-01-28 1966-03-15 Micheloud Andre Electro-acoustic generator
CH1080564A4 (en) * 1964-08-18 1966-05-14
GB1046747A (en) * 1964-08-28 1966-10-26 Lucas Industries Ltd Electromagnetic horns
US3432849A (en) * 1966-04-29 1969-03-11 Leonard E Earling Sound generator
GB1121261A (en) * 1966-06-27 1968-07-24 Lucas Industries Ltd Electromagnetic horns
US3440648A (en) * 1968-05-09 1969-04-22 Mallory & Co Inc P R Integrated-circuit amplifier and oscillator

Also Published As

Publication number Publication date
SE390462B (en) 1976-12-20
CA986754A (en) 1976-04-06
US3846792A (en) 1974-11-05
IT944816B (en) 1973-04-20
DE2155472A1 (en) 1972-05-10
FR2113679A5 (en) 1972-06-23
NL7115306A (en) 1972-05-09
DE2155472B2 (en) 1980-07-03
DE2155472C3 (en) 1981-05-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
427A Application made for restoration (sect. 27/1949)
427R Application refused (sect. 27/1949)
427T Application made to the patents appeal tribunal (sect. 27/1949)
427P Application made to the patents court ** appeal allowed (sect. 27/1949)
728A Order made restoring the patent (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee