| Patents for B06B 1 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency (14,020) |
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| 02/26/1980 | US4190784 Piezoelectric electroacoustic transducers of the bi-laminar flexural vibrating type |
| 02/26/1980 | US4190782 Piezoelectric ceramic resonant transducer with stable frequency |
| 02/19/1980 | US4189655 Lightweight piezoelectric accelerometer |
| 02/12/1980 | CA1071750A1 Transducer having piezoelectric film arranged with alternating curvatures |
| 02/05/1980 | CA1071322A1 Ultrasonic transducer and a method for manufacture thereof |
| 01/29/1980 | US4186387 Ultrasonic pest repellent method and system |
| 01/29/1980 | CA1070818A1 Sonic transducer and drive circuit |
| 01/23/1980 | EP0007308A1 Ultrasonic wave energy electronic b-scan imaging apparatus |
| 01/23/1980 | EP0007220A1 Vibrating systems |
| 01/15/1980 | US4184093 Piezoelectric polymer rectangular flexural plate hydrophone |
| 01/15/1980 | US4184088 Detachable head appliance driven by an electric motor |
| 01/15/1980 | US4183278 Driver circuit for tone generator |
| 01/09/1980 | EP0006833A2 Low-frequency sound generator |
| 01/09/1980 | EP0006624A2 Method for manufacturing ultrasonic transducers |
| 01/09/1980 | EP0006623A2 Ultrasonic transducer |
| 01/08/1980 | US4183011 Ultrasonic cleaning systems |
| 01/08/1980 | US4183007 Ultrasonic transceiver |
| 01/01/1980 | US4181864 Matching network for switchable segmented ultrasonic transducers |
| 01/01/1980 | US4181027 Nodal/modal control and power intensification methods and apparatus for vibration testing |
| 01/01/1980 | US4181026 Quasi-random pneumatic vibration facility and automatic frequency modulating system therefor |
| 12/25/1979 | US4180809 Electronic siren |
| 12/25/1979 | US4180792 Transmit-receive transducer array and ultrasonic imaging system |
| 12/25/1979 | US4180139 Fluid operated seismic generator |
| 12/18/1979 | US4178838 Oil porting system for dual cylinder vibrator |
| 12/18/1979 | CA1068394A1 Acceleration balanced hydrophone ii |
| 12/18/1979 | CA1068347A1 Electronic remote control transmitter |
| 12/11/1979 | US4178578 Pest control apparatus |
| 12/11/1979 | US4178577 Low frequency hydrophone |
| 11/29/1979 | WO1979001019A1 A method in sonic cleaning |
| 11/27/1979 | CA1067199A1 Transducer device for found waves with automatic compensation |
| 11/20/1979 | US4175242 Circuit arrangement for the automatic frequency control of an ultrasonic transducer |
| 11/15/1979 | WO1979000929A1 A method for investingating an anchored rod-like body having an accessible end,and apparatus for carrying out the method |
| 11/06/1979 | US4173726 Tuning fork-type piezoelectric vibrator |
| 11/06/1979 | US4173725 Piezoelectrically driven ultrasonic transducer |
| 10/31/1979 | EP0005071A2 Probe for electronic scanning type ultrasonic diagnostic apparatus |
| 10/30/1979 | US4172986 Vibrator |
| 10/17/1979 | EP0004550A2 Agricultural machine provided with a roller |
| 10/09/1979 | US4170549 Vibrating screen apparatus |
| 10/09/1979 | US4170185 Preventing marine fouling |
| 10/09/1979 | US4170142 Linear transducer array and method for both pulse-echo and holographic acoustic imaging |
| 10/09/1979 | CA1064087A1 Cylindrical magnetostrictive transducer |
| 10/02/1979 | CA1063710A1 Electromagnetic transducer |
| 09/25/1979 | US4168917 Vibrator |
| 09/25/1979 | US4168916 Ultrasonic oscillator device and machine incorporating the device |
| 09/25/1979 | US4168628 Pulse-echo ultrasonic-imaging display system having time-varied effective aperture |
| 08/28/1979 | US4166229 Piezoelectric polymer membrane stress gage |
| 08/28/1979 | US4165961 Burner with ultrasonic vibrator |
| 08/28/1979 | US4165655 Vibrating screen apparatus having dual function eccentric weights |
| 08/14/1979 | CA1060310A1 Hydraulic vibration exciter and method of cooling thereof |
| 08/07/1979 | US4163966 Rodent repellor |
| 08/07/1979 | US4163917 Ultrasonic transducer with temperature stability due to selected damping materials and/or assembly methods |
| 07/31/1979 | US4163206 Apparatus and method for seismic wave detection |
| 07/31/1979 | US4162778 Vibrating machine suspension |
| 07/31/1979 | CA1059610A1 Elongated continuous receiving structure_ |
| 07/31/1979 | CA1059341A1 Eccentric drive mechanism |
| 07/26/1979 | WO1979000453A1 Vibratory device for feeders and the like |
| 07/24/1979 | US4162476 Acceleration balanced hydrophone II |
| 07/24/1979 | US4162111 Piezoelectric ultrasonic transducer with damped housing |
| 07/24/1979 | CA1059233A1 Acoustic transducer |
| 07/11/1979 | EP0002838A1 Vibratory device for feeders and the like |
| 07/03/1979 | US4160232 Low frequency dipole hydrophone transducer |
| 07/03/1979 | US4160231 Low frequency dipole hydrophone transducer |
| 07/03/1979 | US4160230 Acoustic antenna |
| 07/03/1979 | CA1057846A1 Piezoelectric stack insulation |
| 07/03/1979 | CA1057844A1 Transducer drive circuit for remote control transmitter |
| 07/03/1979 | CA1057843A1 High power remote control ultrasonic transmitter |
| 06/28/1979 | WO1979000372A1 Ultrasonic wave energy electronic b-scan imaging apparatus |
| 06/26/1979 | CA1057162A1 Hydraulic vibrator |
| 05/30/1979 | EP0002161A2 Piezo-electric transducing device and process for its manufacture |
| 05/29/1979 | US4156863 Conical beam transducer array |
| 05/29/1979 | US4156824 Composite low frequency transducer |
| 05/29/1979 | US4156823 Method for damping an ultrasonic transducer |
| 05/22/1979 | US4156158 Double serrated piezoelectric transducer |
| 05/22/1979 | US4156157 Alternate constant current or voltage generator for an ultrasonic generator |
| 05/22/1979 | US4155287 Hydraulically operated impact devices |
| 05/22/1979 | CA1055126A1 Acoustic wave devices involving perturbation of acoustic velocity by diffusion of metals |
| 05/22/1979 | CA1054976A1 Four shafted eccentric weight vibration device |
| 05/15/1979 | US4154641 Apparatus for vibration welding thermoplastic parts |
| 05/08/1979 | US4152943 Vibratory mechanism |
| 04/24/1979 | US4151437 Piezoelectric transducers and acoustic antennas which can be immersed to a great depth |
| 04/24/1979 | US4151432 High density, mechanical strength, electrical resistance |
| 04/24/1979 | CA1053363A1 Acceleration-insensitive hydrophone |
| 04/17/1979 | US4149421 Device for utrasonically checking material by means of an electrodynamic converter |
| 04/03/1979 | US4147516 Fluid pressure |
| 03/27/1979 | CA1051268A1 Track tamper and vibratory drive mechanism |
| 03/20/1979 | US4145156 Plate vibrator |
| 03/20/1979 | US4144939 Apparatus for converting centrifugal energy into percussive energy |
| 03/20/1979 | US4144877 Instrument for viscoelastic measurement |
| 03/20/1979 | CA1051112A1 Apparatus for producing acoustic vibrations in liquids |
| 03/13/1979 | CA1050368A1 Vibration attenuating device |
| 03/06/1979 | CA1049742A1 Vibratory sand reclaiming apparatus |
| 02/27/1979 | US4141608 Circuitry for driving a non-linear transducer for ultrasonic cleaning |
| 02/13/1979 | US4139842 Audible alarm unit |
| 02/13/1979 | US4138896 Electrodynamic sound converter |
| 02/06/1979 | US4138659 Sonic motor |
| 01/30/1979 | US4137470 Magnetostrictive elastic surface wave structure |
| 01/23/1979 | CA1047157A1 Mobile device generating transverse acoustic waves in the ground |
| 01/16/1979 | US4135109 High powered piezoelectric cylindrical transducer with threads cut into the wall |
| 01/09/1979 | US4134097 Combination geophone-hydrophone |
| 01/02/1979 | US4132974 Method for seismic marine survey |