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)
03/1996
03/05/1996US5497357 Shock-resistant flextensional transducer
03/05/1996US5495766 Ultrasonic sensor
03/05/1996CA2044248C Electric horn with solid state driver
02/1996
02/28/1996CN2221248Y Multi-direction electronic buzzer
02/28/1996CN2221247Y General-purpose automotive electronic horn circuit
02/27/1996US5495137 Proximity sensor utilizing polymer piezoelectric film with protective metal layer
02/15/1996WO1996004645A1 A warning horn, particularly for motor vehicles
02/15/1996WO1996004644A1 An acoustic warning device, particularly for motor vehicles
02/15/1996CA2196890A1 An acoustic warning device, particularly for motor vehicles
02/14/1996CN2220111Y AC buzzer
02/08/1996DE4424194C1 Ultrasonic transducer for measuring applications in gas or fluid environment
02/07/1996CN2219532Y Alarm for preventing child from kicking quilt in sleep
01/1996
01/31/1996EP0694824A1 Timepiece with electro acoustic transducer
01/24/1996CN1115556A Production of vibrating objects used in electric acoustic exchanger
01/24/1996CN1115486A Electro-magnetic acoustic exchanger and method for winding coil of same
01/09/1996US5483501 Short distance ultrasonic distance meter
01/03/1996EP0690435A2 Buzzer driving device
01/03/1996CN2216711Y Non-contact electric horn for automotive vehicle
01/03/1996CN2216710Y Non-contact double horn
12/1995
12/27/1995CN2216288Y Contactless electric horn for car
12/20/1995EP0688144A2 Method of fabricating an electroacoustic transducer
12/20/1995CN2215761Y Loudspeaker for vehicles
12/19/1995US5477101 Downhole acoustic transducer
12/06/1995CN1113009A Proximity sensor utilizing polymer piezoelectric film
12/05/1995US5473307 Transducer apparatus responsive to external perturbation
11/1995
11/29/1995EP0684098A2 Metal strip casting
11/28/1995CA2150072A1 Metal strip casting
11/21/1995US5469406 Method of emitting very low frequency high power acoustic waves, and corresponding transducers therefor
11/21/1995US5469132 Transducer apparatus responsive to external perturbation
11/16/1995WO1995030982A1 Sounder
11/16/1995WO1995030912A1 Flextensional acoustic source for offshore seismic exploration
11/16/1995WO1995030911A1 Acoustic transmitter
11/14/1995US5467323 Electroacoustic transducer
11/08/1995CN2212241Y Electron horn
11/02/1995EP0679907A2 Short distance ultrasonic distance meter
11/02/1995DE4414591A1 Electromagnetic car horn
11/01/1995CN1030216C Electronic sound-producing device
10/1995
10/25/1995EP0678853A2 Ultrasonic transducer with asymmetric radiation characteristic
10/25/1995EP0527963B1 Loading of flextensional transducer shells
10/24/1995US5460116 Horn for sportfans
10/10/1995US5457752 Drive system for acoustic devices
10/10/1995US5457437 Sparking free circuit of electric horn
10/10/1995US5457353 For use in a glass-break signaling configuration
09/1995
09/21/1995DE4409279A1 Acoustic signal source for vehicle horn
09/20/1995CN2208264Y Contactless electric horn of vehicle
09/13/1995CN2207622Y Vehicle, ship electronic horn
08/1995
08/30/1995EP0669785A1 Electroacoustic transducer and method of winding coil therein
08/29/1995US5446332 Ultrasonic transducer
08/16/1995EP0452427B1 Electric horn with solid state driver
08/02/1995EP0664918A1 Alarm systems
07/1995
07/26/1995CN2204062Y Electronic horn for vehicle
07/19/1995EP0550684B1 Acoustic transmitter
07/11/1995US5431058 Flexural strain gauge acoustic transducer for deep submersion
07/05/1995CN2202959Y Small horn for cheering
06/1995
06/21/1995CN1103979A Piezoelectric buzzer
06/15/1995WO1995016248A1 A siren unit
06/14/1995EP0657868A1 Process and transducer for emitting very low frequency acoustic waves with high power
06/13/1995US5425002 Acoustic pressure pulse generator
05/1995
05/30/1995US5420563 Motor-vehicle horn
05/24/1995CN2198651Y General electromic horn for automobile
05/23/1995US5418518 Animal warning device
05/18/1995DE4338633A1 Sound generating device e.g for fanfare at sports locations
05/16/1995US5416751 Electroacoustic transducer
05/10/1995CN2196809Y Electronic loudspeaker for vehicle
04/1995
04/26/1995EP0650308A1 Electroacoustic transducer and method of fabricating the same
04/12/1995CN2194295Y Steering wheel type horn button
03/1995
03/30/1995DE4434692A1 Ultrasonic sensor
03/29/1995CN2193581Y Electronic horn
03/29/1995CN2193580Y Energy-saving contactless automobile electrical horn
03/29/1995CN1100831A Contactless electronic hooter for DLA series automobiles
03/16/1995WO1995007529A1 Ultrasonic transducer with adapter
03/15/1995EP0642843A1 Proximity sensor utilizing polymer piezoelectric film
03/15/1995CN1027949C Acoustic transmitter
03/14/1995CA2091892C Acoustic transmitter
02/1995
02/28/1995US5394479 Sounding apparatus with surface mounting terminals
02/16/1995DE4330747C1 Ultrasonic transducer and method for producing it
02/02/1995CA2167695A1 Device for feeding an electric load
02/01/1995CN2188795Y Gas horn for vihicle
01/1995
01/26/1995DE4324331A1 Supply system for feeding electrical bulb having specified rated voltage
01/12/1995DE4404020A1 Acoustic signal transmitter, in particular electromagnetic motor horn
01/11/1995EP0578787A4 Method and apparatus for adjusting vehicle horns.
01/04/1995CN2186947Y Contactless electrical horn
12/1994
12/28/1994EP0547060B1 Ultrasonic transducer for measuring the travel times of ultrasonic pulses in a gas
12/28/1994CN2186431Y Wind instrument with top adjusting
12/27/1994US5376916 Buzzer damping sound producing device
12/21/1994CN2185915Y Vehicle electrical hooter
12/20/1994US5375101 Electromagnetic sonar transmitter apparatus and method utilizing offset frequency drive
12/20/1994US5374236 Electromagnetic pressure pulse source
12/06/1994CA1333419C Flextensional transducers
11/1994
11/30/1994EP0626090A1 Automotive vehicle tone generator
11/09/1994EP0623913A2 Electroacoustic transducer
11/09/1994CN2182442Y Buzzing slice type signal converter
11/08/1994US5363346 Conforming tuning coupler for flextensional transducers
11/02/1994EP0622776A2 Electromagnetic signal horn
11/02/1994CN2181728Y Electric transistor horn for motor-vehicle
10/1994
10/19/1994EP0620545A1 Electrical switch for an acoustical warning device
10/18/1994US5355830 Rechargeable air horn and method of using the same
10/12/1994CN2179621Y Self-control low pressure air horn
10/02/1994CA2120188A1 Switching means for an audible warning signal generator
09/1994
09/27/1994US5350352 Acoustic pressure pulse generator
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