| 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) |
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| 06/10/1993 | WO1993011527A1 Ultrasonic damping material |
| 06/09/1993 | DE4140040A1 Ultraschall-daempfungsmaterial Ultrasonic daempfungsmaterial |
| 06/08/1993 | US5218575 Acoustic transducer |
| 06/08/1993 | US5218337 Automotive vehicle tone generator |
| 06/02/1993 | CN2135185Y Contactless dc-ac dual-purpose efficient electric horn |
| 05/25/1993 | US5214620 Electrically driveable shockwave source |
| 05/25/1993 | US5214340 Driver circuit for piezoelectric element, having voltage limiter capable of charging the element with energy from coil after charging switch is off |
| 05/18/1993 | US5212670 Flextensional hydrophone |
| 05/13/1993 | WO1993009642A1 Sealing of flextensional transmitter |
| 05/13/1993 | WO1993009641A1 Shell for flextensional transmitter |
| 05/13/1993 | WO1993009530A1 Horn for sportfans |
| 05/13/1993 | CA2122045A1 Horn for sportfans |
| 05/12/1993 | EP0540553A1 Composite acoustic system for telephone hand-sets |
| 05/12/1993 | CN2133029Y Contactless electric loudspeaker for automobile |
| 05/05/1993 | EP0539935A2 Horn driven by pressure means |
| 05/05/1993 | CN2132248Y Bamboo flute with three sounds |
| 05/04/1993 | US5207215 Acoustic pressure pulse generator |
| 04/29/1993 | DE4135408A1 Converting electric energy into vibrations - using piezoelectric effect to translate contraction or expansion to vibration of diaphragm |
| 04/20/1993 | US5204844 Moment bender transducer |
| 04/14/1993 | CN1071022A Small sound produing device |
| 04/06/1993 | US5200932 Underwater audible signalling device |
| 03/31/1993 | EP0533893A1 Vehicle horn with electronic solid state energizing circuit |
| 03/23/1993 | US5196754 Piezoelectric tone generator and a process for producing it |
| 03/18/1993 | WO1993005624A1 Drive system for acoustic devices |
| 03/18/1993 | WO1993005515A1 Cooling system for acoustic devices |
| 03/10/1993 | CN1069846A 发声装置的驱动系统 Sound device driver system |
| 03/10/1993 | CN1069845A 用于发声装置的冷却系统 Sound device for cooling system |
| 03/02/1993 | US5191560 Sound wave generator for therapeutic purposes |
| 03/02/1993 | CA1313980C Low-frequency sound generator, especially for grills |
| 02/24/1993 | EP0527963A1 Loading of flextensional transducer shells. |
| 02/24/1993 | EP0260313B1 Adaptor for coupling plural compression drivers to a common horn |
| 02/17/1993 | EP0527408A2 Electromagnetic signal horn, in particular for vehicles |
| 02/09/1993 | US5185728 Omnidirectional ultrasonic transducer |
| 01/27/1993 | EP0524371A1 Sonar Transducer |
| 01/26/1993 | US5181301 Method of making a very compact audio warning system |
| 01/21/1993 | WO1993001588A1 A motor-vehicle horn |
| 01/19/1993 | US5181019 Weighted transducer and driving circuit with feedback |
| 01/03/1993 | WO1993001069A1 Weighted transducer and driving circuit with feedback |
| 12/29/1992 | US5174280 Shockwave source |
| 12/23/1992 | CN2125868U Simple type improved structure of appliance able to produce sound by vibrating a diaphragm |
| 12/10/1992 | DE4218621A1 Elektrisches horn bzw. hupe Electric horn and horn |
| 12/10/1992 | DE4125375C1 Pressure pulse source for lithotripsy - has pulsed diaphragm in acoustic medium with layer of lower acoustic impedance |
| 12/10/1992 | DE4118306A1 Flat-coil electromagnetic source of acoustic shock waves e.g. for medical use - has flat wire wound on-edge under conductive diaphragm and excited by high voltage generator |
| 11/25/1992 | CN2123106U Boiling buzzer for kettles |
| 11/25/1992 | CN1066524A Sound anti-muffler for sound generator |
| 11/24/1992 | US5165388 Electrodynamic shockwave generator with a superconducting coil arrangement |
| 11/05/1992 | DE4114180A1 Ultrasonic transducer for echo sounding distance measurement - has damping material ring applied to oscillation membrane on side facing propagation medium |
| 11/04/1992 | EP0511920A1 Variable level driver circuit for periodic excitation of a capacitive load |
| 11/04/1992 | CN2121062U Combined air loudspeaker |
| 11/03/1992 | US5160336 Device for acting by ultrasonic vibrations on an object |
| 11/03/1992 | US5160147 Toy ball game set |
| 10/30/1992 | CA2067259A1 Sound anti-muffler for a sound generator |
| 10/28/1992 | CN1065744A Vehicle horn with electronic solid state energizing circuit |
| 10/21/1992 | EP0509840A2 Sounding device |
| 10/20/1992 | US5157374 Alarm buzzer and accessory |
| 10/14/1992 | EP0508819A2 Apparatus for tracking and communicating with objects under water |
| 10/13/1992 | WO1992018955A1 Vehicle horn with electronic solid state energizing circuit |
| 10/13/1992 | US5155709 Electro-acoustic transducers |
| 10/01/1992 | DE4122223C1 Acoustic, focussed, pressure pulse generator - has presser pulse source, pulse reflector, and acoustic lens between reflector and focus |
| 10/01/1992 | DE4110102A1 Electromagnetically driven pressure pulse source for medical use - has electrically conducting membrane formed as annular array of zones activated by drive coils having variable timings |
| 09/17/1992 | DE4120593C1 Focussed acoustic pressure pulse source - comprises circular zones similarly activated but of differing diameters and foci |
| 09/16/1992 | CN2116266U Automotive electronic horn |
| 09/08/1992 | US5146508 Omindirectional modular siren |
| 08/27/1992 | DE4133327A1 Acoustic pressure pulse generator - uses electrical coil arrangement on carrier to drive diaphragm contg. electrically conductive material |
| 08/19/1992 | CN1063770A Thin buzzer |
| 08/12/1992 | CN2112877U Electric health care sound machine |
| 08/11/1992 | US5137014 Coil for lithotripter |
| 08/11/1992 | US5136964 Warning device for windsurfing craft |
| 08/06/1992 | WO1992013338A1 Flextensor acoustic transducer for deep immersion |
| 08/06/1992 | WO1992002795A3 Ultrasonic transducer |
| 08/06/1992 | DE4103016A1 EM signal generator for clock with electronic alarm - has permanent magnetic particles in base of plastics material housing and diaphragm with mound-shaped flux return bridging piece |
| 08/05/1992 | EP0497568A2 Thin buzzer |
| 08/04/1992 | US5136556 Wide bandwidth barrel stave projector |
| 07/15/1992 | EP0494480A1 Dipole and Quadrupole borehole seizmic transducer |
| 07/15/1992 | CN2110265U Two-purpose electronic door bell |
| 07/14/1992 | US5130953 Submersible electro-acoustic transducer |
| 07/01/1992 | EP0492882A2 Moment bender transducer drive |
| 06/30/1992 | US5126979 Variable reluctance actuated flextension transducer |
| 06/30/1992 | US5126589 Piezoelectric driver using resonant energy transfer |
| 06/25/1992 | WO1992010401A1 Signalling device |
| 06/11/1992 | DE4038651A1 Pressure pulse generator assembly - has pressure pulse source, HV pulse generator, and housing for both, forming integral module |
| 06/04/1992 | DE4037893A1 HV line feeding HV pulses to inductive load - has RC network at line start end with specified HV pulse transit time |
| 05/27/1992 | CN2105743U Photo controll sound device |
| 05/13/1992 | EP0485261A1 Downhole acoustic transducer |
| 05/13/1992 | EP0452427A4 Electric horn with solid state driver |
| 05/06/1992 | EP0483396A1 Acoustic pressure impulse generator |
| 05/05/1992 | US5109698 Monopole, dipole, and quadrupole borehole seismic transducers |
| 04/30/1992 | DE4034412A1 Degassing arrangement for acoustic propagation media - comprises evacuatable vessel in which helically coiled, silicone hose is located, and hose is connected to fluid circulation lines |
| 04/22/1992 | EP0297101B1 Flextensional transducers |
| 04/22/1992 | EP0297100B1 Sonar transducers |
| 04/21/1992 | US5106332 Noise-making device incorporating "whooping" plate |
| 04/16/1992 | DE4038650C1 Pressure pulse concretion remover - has pulsed pressure source and pulse generator in common housing |
| 04/16/1992 | CA2052663A1 Horn |
| 04/15/1992 | CN1060365A Plastic casing of snail-shaped electric horn for automobile and manufacture thereof |
| 04/14/1992 | US5105394 Constrained diaphragm transducer |
| 04/14/1992 | US5105116 Piezoelectric transducer and sound-generating device |
| 04/09/1992 | DE4042315A1 Acoustic coupling system for handsets |
| 04/08/1992 | CN1060192A Acoustic transmitter |
| 04/07/1992 | US5103130 Sound reinforcing seal for slotted acoustic transducers |
| 04/02/1992 | DE4130797A1 Electrically-driven acoustic shock wave source - with membrane encapsulation providing coil winding current terminal |