CH646303GA3 - - Google Patents

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Publication number
CH646303GA3
CH646303GA3 CH263381A CH263381A CH646303GA3 CH 646303G A3 CH646303G A3 CH 646303GA3 CH 263381 A CH263381 A CH 263381A CH 263381 A CH263381 A CH 263381A CH 646303G A3 CH646303G A3 CH 646303GA3
Authority
CH
Switzerland
Prior art keywords
lead substrate
base plate
projections
excitation coil
magnetic core
Prior art date
Application number
CH263381A
Other languages
English (en)
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 filed Critical
Publication of CH646303GA3 publication Critical patent/CH646303GA3/fr

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
CH263381A 1980-04-22 1981-04-22 CH646303GA3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5318980A JPS56149096A (en) 1980-04-22 1980-04-22 Electromagnetic buzzer

Publications (1)

Publication Number Publication Date
CH646303GA3 true CH646303GA3 (fr) 1984-11-30

Family

ID=12935922

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263381A CH646303GA3 (fr) 1980-04-22 1981-04-22

Country Status (6)

Country Link
US (1) US4391532A (fr)
JP (1) JPS56149096A (fr)
CH (1) CH646303GA3 (fr)
GB (1) GB2074773B (fr)
HK (1) HK64286A (fr)
SG (1) SG26985G (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435777A (en) * 1977-08-25 1979-03-16 Seiko Epson Corp Alarm watch
US5287084A (en) * 1991-02-01 1994-02-15 Star Micronics Co., Ltd. Thin buzzer
US5481618A (en) * 1993-07-30 1996-01-02 Motorola, Inc. Interconnection of a speaker using magnetic coupling
US5953436A (en) * 1997-07-18 1999-09-14 Caterpillar Inc. Apparatus for generating an audible tone
US5894264A (en) * 1997-07-18 1999-04-13 Caterpillar Inc. Apparatus for generating an audible tone
KR200160178Y1 (ko) * 1997-08-05 1999-11-01 이종배 다용도 진동 및 호출음 발생장치
US5867452A (en) * 1997-10-17 1999-02-02 E. Gluck Corp. Watch with invisible speaker
US20040203503A1 (en) * 2002-05-31 2004-10-14 Rollins Thomas James Portable electronic apparatus
CN100575944C (zh) * 2004-07-23 2009-12-30 电力研究所有限公司 挠性电磁声学换能传感器
EP1774255B1 (fr) * 2004-07-26 2010-11-24 Electric Power Research Institute, Inc Dispositif de mesure
WO2006093899A2 (fr) * 2005-02-28 2006-09-08 Electric Power Research Institute, Inc. Procede d'inspection et de reparation
US8103043B2 (en) * 2009-02-13 2012-01-24 Kyocera Corporation Sound-generation arrangements in portable electronic devices
IT1403105B1 (it) * 2010-12-15 2013-10-04 Corvino Struttura di orologio da polso.
CN103236843B (zh) * 2013-05-08 2015-09-02 杭州百事特电子有限公司 一种脉冲波形驱动器及电磁式蜂鸣器
EP3009895B1 (fr) * 2014-10-15 2017-06-28 Montres Breguet SA Montre musicale ou à sonnerie munie d'un agencement à rayonnement acoustique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075626A (en) * 1976-11-11 1978-02-21 Kobishi Electric Co., Ltd. Alarm buzzer
US4222089A (en) * 1977-11-10 1980-09-09 The Scott & Fetzer Company Oil burner ignition and control package
JPS5818299Y2 (ja) * 1978-04-28 1983-04-13 富士通株式会社 プリント基板ユニット内蔵型電子機器
JPS5536762A (en) * 1978-09-07 1980-03-14 Seiko Instr & Electronics Ltd Electronic alarm clock
US4245274A (en) * 1979-01-15 1981-01-13 Bally Manufacturing Corporation Readout and circuit board with test access
US4295181A (en) * 1979-01-15 1981-10-13 Texas Instruments Incorporated Module for an integrated circuit system

Also Published As

Publication number Publication date
HK64286A (en) 1986-09-05
GB2074773A (en) 1981-11-04
US4391532A (en) 1983-07-05
JPS56149096A (en) 1981-11-18
SG26985G (en) 1990-07-06
GB2074773B (en) 1983-09-14

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