| 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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| 02/20/1979 | CA1048822A1 High efficiency buzzer |
| 01/23/1979 | US4136337 Buzzer assembly |
| 01/23/1979 | US4135473 Vehicular sound generator |
| 01/16/1979 | US4134698 Compact fail-safe buzzer |
| 01/16/1979 | US4134200 Method of making an electromagnetic sound generator |
| 01/09/1979 | CA1046158A1 Snap-on housing adapted for panel mounting of transducer |
| 11/28/1978 | US4127081 Jet resonator pulsator |
| 11/07/1978 | US4124215 Inertial phonograph device |
| 10/24/1978 | US4122365 Piezoelectric buzzer device |
| 10/03/1978 | CA1039542A1 Timed buzzer |
| 09/26/1978 | US4116158 Vibrating membrane horns |
| 09/19/1978 | US4115770 A buzzer having adjustable buzzer sound |
| 09/05/1978 | US4112402 Compact fail-safe buzzer |
| 08/01/1978 | US4104628 High output audible alarm device utilizing a piezoelectric transducer and voltage doubling means |
| 07/25/1978 | US4103280 Device for emitting acoustic waves in a liquid medium |
| 07/25/1978 | US4102297 Acoustical signal apparatus |
| 07/11/1978 | USRE29701 Timed buzzer |
| 06/27/1978 | US4097861 D.C. horn |
| 06/20/1978 | US4095667 Portable underwater signalling transducer |
| 06/13/1978 | CA1033048A1 Implosion sound wave generating device |
| 05/30/1978 | US4091762 Audible vibratory reed assembly |
| 05/30/1978 | US4091742 Stacked container well hole gondola car |
| 05/23/1978 | US4091383 Game saver device |
| 02/21/1978 | US4075627 Electric horn |
| 02/21/1978 | US4075626 Alarm buzzer |
| 01/31/1978 | US4071110 Underwater voice communicator |
| 11/08/1977 | US4057799 Electro-acoustic signalling horns |
| 11/01/1977 | US4056741 Audible signal generating apparatus having selectively controlled audible output |
| 09/27/1977 | US4050405 Single-housing multi-trumpet air horn |
| 09/20/1977 | US4050066 Buzzer |
| 09/20/1977 | US4048750 Game call with two-diaphragm sounder |
| 09/06/1977 | US4047060 Acoustic transducer with elastomeric coupling |
| 08/30/1977 | US4044712 Pressurized fluid powered horn |
| 08/02/1977 | US4040051 Electromagnetically operated audible signal generator |
| 07/26/1977 | US4038630 Airgun marine seismic survey streamer method and apparatus |
| 06/14/1977 | US4030063 Ultra low frequency acoustic generator |
| 06/07/1977 | US4028503 Electromagnetic sound generator |
| 05/10/1977 | US4023162 Electronic buzzer |
| 02/15/1977 | US4007703 Two-tone sound generator |
| 01/25/1977 | US4005413 Buzzer construction and method of adjusting the same |
| 01/25/1977 | US4004409 Watch having a piezo electric buzzer mechanism |
| 01/11/1977 | US4003043 Timed buzzer |
| 01/04/1977 | US4001765 Pressure compensating sound transducer apparatus |
| 01/04/1977 | US4000715 Acoustic alarm device with sound attenuator |
| 12/14/1976 | US3997022 Device for generating acoustic waves by implosion |
| 12/14/1976 | US3997021 Pressurized gas discharging apparatus for use as a down-bore seismic impulse source |
| 11/23/1976 | US3993973 Underwater transient sound generator having pressure compensating fillet |
| 09/07/1976 | US3979565 Metal enclosed transducer assembly |
| 08/31/1976 | US3978286 Artificial larynx |
| 08/10/1976 | US3974499 Contactless buzzer |
| 07/20/1976 | US3970879 Piezoelectric acoustic device |
| 07/13/1976 | US3968592 Game caller having diaphragm means, megaphone and bellows |
| 06/01/1976 | US3961327 Audible alarm for a synchronous motor |
| 05/18/1976 | US3958094 Kickout switch and buzzer |
| 05/18/1976 | US3957012 Anti-burglary sound emitting device |
| 04/13/1976 | US3950744 Modular buzzer with diaphragm molded into housing |
| 03/09/1976 | US3942468 Back pressure operated sound transmitter |
| 03/02/1976 | US3941081 Alarm for a bicycle |
| 02/10/1976 | US3938143 Buzzer |
| 02/10/1976 | US3938141 Snap-on housing adapted for panel mounting of transducer |
| 02/10/1976 | US3937991 Electroacoustic transducers of the bilaminar flexural vibrating type and method for manufacturing same |
| 01/13/1976 | US3932868 Alarm buzzer device |