| Patents for B06B 1 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency (14,020) |
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| 02/11/1981 | EP0023690A1 Oscillating apparatus for changing a rotational movement into a reciprocating movement |
| 02/03/1981 | US4248092 Method and apparatus for efficiently generating elastic waves with a transducer |
| 02/03/1981 | CA1095160A1 Method and means for measuring and identifying up- and down traveling waves in underground formations |
| 01/27/1981 | CA1094351A1 Vibrating screen apparatus having dual function eccentric weights |
| 01/27/1981 | CA1094350A1 Vibratory device |
| 01/22/1981 | WO1981000123A1 An eccentric element |
| 01/22/1981 | WO1981000064A1 Pneumatic diaphragm valve pulsator |
| 01/20/1981 | US4245705 Apparatus for taking off vibratory power for tractor |
| 01/14/1981 | EP0022325A1 Method and apparatus for applying torque to a rotating structure and use of said method and apparatus |
| 01/14/1981 | EP0022254A1 Piezoelectric drive element for the printing nozzles in mosaic ink-printer units |
| 01/13/1981 | US4245329 Elongated seismic receiver of continuous structure |
| 01/06/1981 | CA1092857A1 Vibratory device for feeders and the like |
| 12/30/1980 | US4241615 Vibrating device |
| 12/30/1980 | US4241611 Ultrasonic diagnostic transducer assembly and system |
| 12/23/1980 | US4241334 Electric horn with twin driving electromagnets |
| 12/23/1980 | US4240326 Hydraulic vibration exciter and method of cooling thereof |
| 12/16/1980 | US4240004 Ultrasonic transducer with chemical-setting inorganic cement backing for operation at high temperatures |
| 12/16/1980 | US4240003 Apparatus and method for suppressing mass/spring mode in acoustic imaging transducers |
| 12/02/1980 | US4237399 Driving circuit for piezo-electric multimorph transducer |
| 12/02/1980 | US4236417 Unbalance oscillation generator |
| 11/26/1980 | EP0019267A1 Piezoelectric vibration transducer |
| 11/26/1980 | EP0019082A1 Method and apparatus for focusing elastic waves |
| 11/25/1980 | US4236235 Integrating hydrophone sensing elements |
| 11/25/1980 | US4235154 Vibration motor |
| 11/12/1980 | EP0018614A1 An improved electro-acoustic transducer element |
| 11/12/1980 | EP0018376A1 A method for investigating an anchored rod-like body having an accessible end, and apparatus for carrying out the method |
| 11/11/1980 | US4233477 Flexible, shapeable, composite acoustic transducer |
| 11/11/1980 | US4232557 Periodic magnet unidirectional transducer |
| 11/11/1980 | CA1089254A2 Vibrator with eccentric weights |
| 11/04/1980 | US4232241 Electric circuit for driving a piezoelectric vibrator |
| 10/29/1980 | EP0017886A1 Corona-loudspeaker |
| 10/28/1980 | US4231112 High-power underwater transducer with improved performance and reliability characteristics and method for controlling said improved characteristics |
| 10/28/1980 | US4229978 System for selectably pulsing ultrasonic transducers in a test apparatus |
| 10/21/1980 | US4229812 Apparatus for securing a ferroelectric stack to a weighted projection surface |
| 10/15/1980 | EP0017216A2 Ultrasonic transducer |
| 10/14/1980 | US4228532 Piezoelectric transducer |
| 10/14/1980 | CA1087725A1 Piezoelectric acoustic emission instrumentation |
| 10/07/1980 | US4227110 Transducer control system |
| 10/07/1980 | US4226820 Method of and apparatus for forming an article from a mixture of a solidifying plastic material and a large portion of filler material |
| 10/07/1980 | CA1087147A1 Vibrating machine suspension |
| 09/30/1980 | US4225856 Circuit means for providing multiple audible signals from an audible tone generator means |
| 09/23/1980 | US4223428 Method and apparatus for securing a ferroelectric stack to a weighted projection surface |
| 09/23/1980 | CA1086096A1 Vibrating device |
| 09/16/1980 | US4223401 Broadband free-flooding magnetostrictive scroll transducer |
| 09/16/1980 | US4223400 Low-frequency directional hydrophone |
| 09/09/1980 | US4222114 Cylindrical array radiator |
| 09/09/1980 | US4221499 Vibratory device |
| 09/09/1980 | US4221306 Vibrating feeder |
| 09/03/1980 | EP0014868A1 Vibration generator for an ultrasonic liquid atomiser |
| 09/03/1980 | EP0014719A1 A method in sonic cleaning |
| 09/02/1980 | US4220886 Electroacoustic sandwich transducer with bonded joints |
| 08/26/1980 | US4219889 Double mass-loaded high power piezo-electric underwater transducer |
| 08/26/1980 | US4219799 Vehicular signal apparatus |
| 08/26/1980 | US4219095 Acoustic transducer |
| 08/26/1980 | US4218929 Vibratory device for feeders and the like |
| 08/20/1980 | EP0014693A1 An improved ultrasonic transducer |
| 08/19/1980 | US4217786 Transmission cable for use with an ultrasonic device |
| 08/19/1980 | US4217684 Fabrication of front surface matched ultrasonic transducer array |
| 08/12/1980 | US4217516 Probe for ultrasonic diagnostic apparatus |
| 08/12/1980 | CA1083387A1 Vibrator devices |
| 08/05/1980 | CA1082962A1 High output audible alarm device utilizing a piezoelectric transducer and voltage doubling means |
| 07/29/1980 | US4215339 Electronic chime |
| 07/29/1980 | CA1082798A1 Magnetostrictive elastic surface wave structure |
| 07/24/1980 | WO1980001499A1 Method of regeneration of drilling mud |
| 07/23/1980 | EP0013495A1 Positive displacement device |
| 07/22/1980 | CA1081999A1 Drive device without transmission for producing an elliptical shaking movement |
| 07/22/1980 | CA1081998A2 Vibratory material handling apparatus |
| 07/15/1980 | US4213071 Oxygen filled, sealed housing for piezoceramic electroacoustic transducer |
| 07/15/1980 | US4212731 Drive device without transmission for producing an elliptical shaking movement |
| 07/08/1980 | US4211950 Arrangement for coupling RF energy into piezoelectric transducers |
| 07/08/1980 | US4211948 Front surface matched piezoelectric ultrasonic transducer array with wide field of view |
| 07/08/1980 | US4211121 Vibrator with eccentric weights |
| 07/01/1980 | US4210095 Machine for draining parts emerging from hot galvanizing baths |
| 06/25/1980 | EP0012580A2 Apparatus for detecting and locating the position of a bullet |
| 06/24/1980 | US4209766 Transducer |
| 06/24/1980 | CA1080342A1 Receiving seismic waves with an accelerometer and a hydrophone |
| 06/17/1980 | US4208737 Low frequency inertia balanced dipole hydrophone |
| 06/10/1980 | US4207005 Pronged vibrator |
| 06/10/1980 | CA1079393A1 Transducer assembly and method for radiating and detecting energy over controlled beam width |
| 05/27/1980 | CA1078238A1 Plate vibrator |
| 05/13/1980 | CA1077303A1 Vibrator with eccentric weights |
| 05/13/1980 | CA1077302A1 Earthquake simulator |
| 05/06/1980 | US4202050 Multi-angular sector sound transmitting and receiving system |
| 05/06/1980 | CA1077166A1 Marine gas exploder |
| 04/29/1980 | US4200920 Artificial underwater target |
| 04/29/1980 | US4200859 Device for simulating marine craft noises |
| 04/29/1980 | CA1076693A1 Ultrasonic probe |
| 04/22/1980 | US4199271 Device for sealing V-belt and pulley in plate jarring devices |
| 04/22/1980 | US4199264 Unbalanced weight vibrator |
| 04/16/1980 | EP0009919A1 Reciprocating drive means |
| 04/08/1980 | US4196637 Vibratory device with controlled actuation |
| 04/08/1980 | US4196631 Ultrasonic probe for measuring liquids at high temperature and under high pressure |
| 04/01/1980 | CA1074592A1 Appliance driven by an electric motor |
| 03/25/1980 | US4195244 Cadium sulfide |
| 03/25/1980 | US4194611 Vibrator for importing vibration to a working platform |
| 03/25/1980 | US4194405 Vibrator devices |
| 03/25/1980 | CA1074435A1 Ultrasonic generator |
| 03/18/1980 | US4193647 Piezoelectric ceramic transducers with uniform resonant frequency |
| 03/11/1980 | US4193009 Ultrasonic piezoelectric transducer using a rubber mounting |
| 03/04/1980 | US4191904 Electroacoustic transducers of the flexural resonant vibratile type |