Patents
Patents for G10K 9 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers (3,562)
06/1998
06/03/1998CN2283296Y Electronic horn for motorcycle
06/02/1998US5760679 Acoustic warning device, particularly for motor vehicles
05/1998
05/27/1998EP0843873A1 Audible warning device with a built-in interference suppressing device
05/26/1998US5757728 Acoustic transmitter
05/26/1998US5757726 Flextensional acoustic source for offshore seismic exploration
05/20/1998CN2282247Y Electronic horn for motor vehicle
05/20/1998CN2282246Y Generator for complex tone and changing tone of automobile horn
05/20/1998CN1182258A Contact-less electric horn
05/13/1998EP0710428B1 Device for feeding an electric load
05/06/1998CN2280980Y Electric loudspeaker for vehicle
05/05/1998US5747906 Electroacoustic transducer
04/1998
04/29/1998CN2280337Y Contactless electric horn
04/15/1998EP0835462A1 Electrodynamic driving means for acoustic emitters
04/15/1998CN1038095C Temperature compensation of sound pressure characteristics of electric sound inverter
04/14/1998US5737824 Method of manufacturing electroacoustic transducer
04/08/1998CN1178443A Miniaturized electro-acoustic transducer with performance decrease minimization
04/01/1998EP0594713B1 A motor-vehicle horn
04/01/1998CN2277553Y Improved structure of sounding device
04/01/1998CN2277552Y Electronic horn of vehicle
04/01/1998CN2277551Y Multi-functional electronic vehicle horn
03/1998
03/25/1998CN1177166A Piezoelectric electro-acoustic transducer
03/18/1998CN1037807C Electroacoustic transducer
03/17/1998US5729075 Tuneable microelectromechanical system resonator
03/17/1998US5728089 Microfabricated structure to be used in surgery
03/10/1998US5726626 Waterproof acoustic alarm safety device embodied in a wristwatch
03/04/1998EP0826157A1 Drive assembly for acoustic sources
03/04/1998CN2275750Y Contactless electric horn
02/1998
02/25/1998EP0825799A2 Reduced size electro-acoustic transducer with improved terminal
02/25/1998CN1174486A Method of ultrasonic welding for resin-case
02/24/1998US5721785 Small-sized sound generator
02/18/1998CN2274801Y Contactless sounding controller for electric horn of vehicle
02/18/1998CN1173685A Vibration actuator for pager
02/17/1998US5719549 Buzzer assembly
02/04/1998EP0822537A2 Piezoelectric electro-acoustic transducer
02/04/1998EP0821822A1 Piezoelectric horn, particularly for vehicles
02/04/1998CN2273886Y Electronic and multi-frequency horn
01/1998
01/29/1998WO1998003964A1 A device for generating sound
01/28/1998EP0821342A2 Electromagnetic shockwave generator
01/28/1998CN2273448Y Device for preventing accomplice from ganging up to make a false confession
01/27/1998US5712452 Sound generator
01/22/1998WO1998002871A1 Piezo-electric actuator-transducer for sound reproduction systems
01/22/1998DE19627047C1 Electromagnetic shock wave source circuit
01/21/1998EP0610380B1 Horn for sportfans
01/21/1998CN1170896A Method and device for monolithic processor controlled sounding and frequency stabilizing electric horn
01/14/1998CN2272604Y Sealed type electromagnetic buzzer
01/07/1998EP0816053A2 A method of ultrasonic welding for a resin case
01/06/1998US5704154 Weapon mounted game caller
12/1997
12/31/1997WO1997050077A1 Acoustic transducers using a working fluid
12/31/1997CN1169093A Miniature electro-acoustic converter
12/30/1997US5703335 Marine horn assembly for mounting on a boat wall structure
12/30/1997CA2090806C Sound dampening device for horns
12/24/1997WO1997048353A1 Surgical instrument for mechanical removal of bone cement, and process for production of shock waves
12/23/1997US5701277 Electro-acoustic transducers
12/17/1997CN1168074A Electroacoustic transducer
12/10/1997CN2270264Y Horn sound volume balancing controller
12/10/1997CN1167418A Electro-acoustic conversion device
12/04/1997WO1997045829A1 Protective cover assembly having sound transmission characteristics
11/1997
11/26/1997CN2268976Y Long service life electric automobile horn
11/18/1997CA2090481C Weighted transducer and driving circuit with feedback
11/12/1997EP0806182A1 Hand tool for use in lithotripsy
11/12/1997CN1164951A Sounder
11/06/1997WO1997041454A1 Acoustic source ii
11/06/1997WO1997041453A1 Acoustic source i
11/05/1997CN1036326C Contact-type electric horn circuit for motor-vehicle
10/1997
10/29/1997CN2266181Y Auto-controlled contactless electronic horn for motor-vehicle
10/29/1997CN1163446A General self-powered horn
10/22/1997EP0802521A2 Transducer for sending and/or receiving of acoustic signals
10/15/1997EP0800656A1 Acoustic emission method for sonars
10/15/1997CN2264953Y Rotary piston modulating sound generator
10/15/1997CN1162165A Thick-film electric-circuit block contactless electric loudspeaker and three-wire wiring method of same
10/14/1997US5677679 Sound device for message decoder
10/14/1997US5675885 Method of winding a coil for an electroacoustic transducer
10/09/1997DE19630180C1 Shock wave source, for use in e.g. hand-held therapeutic apparatus
10/01/1997CN2263815Y Multifunction electronic klaxon
09/1997
09/24/1997CN2263387Y Variable sound pocket siren
09/23/1997US5670932 Piezoelectric sounder
09/17/1997EP0796034A2 Piezoelectric acoustic transducer
09/17/1997CN1159727A Calling device with low-voltage alarm device
09/16/1997US5668783 For use in an alarm
09/10/1997EP0793811A1 Acoustic transmitter
09/03/1997EP0793216A2 Pressure chamber driver
09/03/1997CN1158664A An acoustic warning device, particularly for motor vehicles
09/02/1997US5662064 High acoustic output horn
09/02/1997CA1339427C Piezoelectric buzzer and a method of manufacturing the same
08/1997
08/27/1997EP0791405A2 Vibration actuator for pager
08/20/1997EP0790752A1 Sounder
08/20/1997CA2197534A1 Vibration actuator for pager
08/19/1997US5659288 Method for setting horn air gap
08/12/1997US5656779 Apparatus and method for producing structural and acoustic vibrations
07/1997
07/30/1997CN1155724A Contactless electric horn
07/29/1997US5652735 Acoustic source assembly
07/24/1997WO1997026646A1 Damped ultrasonic transducer
07/24/1997DE19601656A1 Bedämpfter Ultraschallwandler Damped ultrasonic transducer
07/23/1997CN2258306Y Contactless electric vehicle hooter
07/08/1997US5646470 Acoustic transducer
06/1997
06/24/1997US5642333 Electroacoustic transducer and method of winding coil therein
06/18/1997CN2256577Y Contactless electronic horn
06/18/1997CN2256576Y Small diaphragm air horn
06/18/1997CN1152159A Digital multi-tone contactless electronic vehicle horn
06/17/1997US5638767 Handheld warning device
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