| Patents for B06B 1 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency (14,020) |
|---|
| 04/07/1992 | US5101599 Ultrasonic machine having amplitude control unit |
| 04/03/1992 | CA2052495A1 Device for eliminating surface-formed hoar frost, in particular on an optical or radio-electric window |
| 04/01/1992 | EP0477575A1 Ultrasonic converter, in particular for air and gas flow measurement, and process of manufacturing the same |
| 04/01/1992 | CN2100257U Electromagnetic vabration resonance structure |
| 03/31/1992 | US5101384 Acoustic devices |
| 03/31/1992 | US5101133 Ultrasonic transducer having piezoelectric transducer elements |
| 03/31/1992 | US5099826 Vibrating device |
| 03/31/1992 | CA1298395C Ultrasound apparatus probe with a priezoelectric member strap |
| 03/31/1992 | CA1298381C Piezoelectric phase locked loop circuit |
| 03/31/1992 | CA1298283C Shaking apparatus |
| 03/26/1992 | CA2052034A1 Us transducer for air and gas flow measurement and a method for the manufacture thereof |
| 03/24/1992 | US5099461 Underwater electroacoustic transducers |
| 03/24/1992 | US5099460 Sonar transducer |
| 03/24/1992 | US5099459 Phased array ultrosonic transducer including different sized phezoelectric segments |
| 03/24/1992 | US5097709 Ultrasonic imaging system |
| 03/19/1992 | WO1992004134A1 Ultrasonic transducer for measuring the travel times of ultrasonic pulses in a gas |
| 03/19/1992 | DE4132342A1 Ultrasonic sensor with grid electrode - is esp. for pressure measurement using sound shock waves and has electrodes before and after polymer foil in sound propagation direction |
| 03/18/1992 | CN2098971U Electromagnetic vibrator with v-shaped working face of air gap |
| 03/17/1992 | US5095890 Method for sampled data frequency control of an ultrasound power generating system |
| 03/17/1992 | US5095809 Piston vibrator having an asymmetric cylindrical bore |
| 03/12/1992 | DE4028432A1 Connecting ultrasonic generator to counterpiece - using friction welding by movement w.r.t. trough, metal plate, cup, bell or similar |
| 03/12/1992 | DE4028315A1 Ultraschallwandler fuer die laufzeitmessung von ultraschall-impulsen in einem gas Ultrasonic transducer for the measurement of maturity ultrasound pulses in a gas |
| 03/11/1992 | CN2098332U Energy-saving electromagnetic vibrator |
| 03/10/1992 | US5095256 Drive circuit for a piezoelectric actuator |
| 03/05/1992 | DE4027949A1 Underwater electroacoustic converter - comprises piezoelectric vibrator with sound head on radiation side and cylindrical housing enclosing vibrator |
| 03/04/1992 | EP0473480A1 Electroacoustic transducer for use under water and comprising a system for automatically compensating the hydrostatic pressure |
| 03/04/1992 | EP0473449A1 Vibration generator |
| 03/04/1992 | EP0472971A2 Piezoelectric driver using resonant energy transfer |
| 03/04/1992 | EP0472649A1 Stringed musical instrument |
| 03/03/1992 | USRE33837 Method and apparatus for acoustic well logging |
| 02/28/1992 | WO1992003665A1 Ultrasonic load indicating member with transducer |
| 02/26/1992 | EP0472085A1 Ultrasound transducer |
| 02/26/1992 | CN1015660B Chock-exciting method of electric eddy-magnetic push-pull and shock exciter |
| 02/25/1992 | US5091893 Ultrasonic array with a high density of electrical connections |
| 02/25/1992 | US5091891 Seismic pulse generation |
| 02/20/1992 | DE4036532C1 Vibrating armature drive - has frame carrying coil and fixed on top branch of U-shaped spring |
| 02/19/1992 | EP0471075A1 Ultrasonic probe and production method thereof |
| 02/19/1992 | EP0471059A1 Electromechanical vibration generator and device using it |
| 02/19/1992 | CN2096422U Pneumatic oscillating guide |
| 02/11/1992 | US5087850 Ultrasonic transducer apparatus |
| 02/11/1992 | CA2048866A1 Acoustic-emission sensor |
| 02/06/1992 | WO1992002054A1 Piezoelectric transducer for high speed data transmission and method of operation |
| 02/06/1992 | WO1992001622A1 Detecting filamentary bodies |
| 02/06/1992 | WO1992001521A1 Ultrasonic electro-acoustic transducers |
| 02/06/1992 | WO1992001520A1 Ultrasonic electro-acoustic transducers |
| 02/06/1992 | DE4023856A1 Piezo-transducer circuit providing lithotripsy pressure pulses - supplies transducer with current pulses of controlled width |
| 01/30/1992 | DE4124750A1 Detection of winding faults on package end - has signals from scanning camera evaluated to allow for package rotation |
| 01/29/1992 | EP0468627A2 Method for bonding together hollow glass spheres |
| 01/29/1992 | EP0468506A2 Fixed origin biplane ultrasonic transducer |
| 01/28/1992 | US5083568 Ultrasound diagnosing device |
| 01/28/1992 | CA1294894C Acoustic transducer for a borehole logging tool |
| 01/22/1992 | EP0467758A1 Multi-frequency vibrator |
| 01/21/1992 | US5081993 Methods and apparatus for the examination and treatment of internal organs |
| 01/21/1992 | CA1294700C Piezoelectric element array echography probe |
| 01/16/1992 | DE4021278A1 Vibration drive with adjustable power e.g. for pile-driver - has two pairs of opposingly rotating masses with adjustable phase coupling |
| 01/15/1992 | EP0465878A2 Piezoceramic ultrasonic transducer |
| 01/14/1992 | US5081391 Piezoelectric cylindrical transducer for producing or detecting asymmetrical vibrations |
| 01/14/1992 | CA1294359C Flexural disk resonant cavity transducer |
| 01/07/1992 | CA1294028C Transducer forming compression and shear waves for use in acoustic well logging |
| 01/07/1992 | CA1293949C Vibratory spiral elevator |
| 01/02/1992 | EP0463964A1 System for emission and reception of ultrasound |
| 12/31/1991 | US5076854 Varying frequencies of sound waves |
| 12/31/1991 | US5076305 Apparatus for cleaning by rapid vibration |
| 12/27/1991 | EP0462311A1 Composite ultrasound transducer and fabrication process of a structured component from piezoelectric ceramic |
| 12/25/1991 | CN2091187U Hydraulic beat oscillating guide |
| 12/19/1991 | DE4016236A1 Immersed body processing - has oscillation applied mechanically to fluid and body to give max. fluid contact at and through workpiece |
| 12/18/1991 | EP0462037A1 Underwater electro-acoustic transducer |
| 12/17/1991 | US5073878 Circuit for driving an acoustic transducer |
| 12/17/1991 | CA1293138C Gear coupled, counter-rotating vibratory drive assembly |
| 12/12/1991 | WO1991006942A1 Electric horn with solid state driver |
| 12/12/1991 | DE4106443A1 Vibration machine with frame elastically mounted on support - has two pairs of shafts with same nominal rotational speeds |
| 12/11/1991 | EP0330687B1 Pneumatic linear vibrator |
| 12/11/1991 | CN2090293U Planetary centrifugal vibrator |
| 12/10/1991 | US5072426 Self-monitoring shock wave hydrophone |
| 12/10/1991 | US5070882 Probe tip ultrasonic transducers and method of manufacture |
| 12/10/1991 | US5070769 Pneumatic linear vibrator |
| 12/03/1991 | US5070486 Process to increase the power of the low frequency electro acoustic transducers and corresponding transducers |
| 11/28/1991 | WO1991017841A1 Method and apparatus for the generation of low frequency sound |
| 11/28/1991 | DE4116060A1 Eccentric disc e.g. for vibrator - has cavities contg. discs of different density |
| 11/27/1991 | EP0458426A2 Electrodynamic ultrasonic transducer and ultrasonic system |
| 11/27/1991 | EP0458146A2 Ultrasonic transducer with reduced acoustic cross coupling |
| 11/27/1991 | EP0458092A2 Curved array ultrasonic transducer assembly and its method of manufacture |
| 11/26/1991 | US5067549 Compaction apparatus and process for compacting sand |
| 11/26/1991 | US5067358 Vibrating table installation for the manufacture of concrete products |
| 11/26/1991 | CA1292408C Method for regulating the energy supply to a sealing device for the sealing of thermoplastic material |
| 11/25/1991 | CA2042499A1 Eccentric mass structure |
| 11/22/1991 | CA2017240A1 Non-metallic gear shaker |
| 11/21/1991 | EP0457666A1 Large amplitude low frequency vibrator |
| 11/21/1991 | EP0457650A2 Ultrasonic measurement apparatus and method for boreholes |
| 11/21/1991 | EP0457467A2 Acoustic transducers |
| 11/20/1991 | CN1056267A Ultrasonic transducer |
| 11/19/1991 | US5065629 Ultrasonic insection apparatus |
| 11/19/1991 | CA2036198A1 Large-amplitude low-frequency vibrator |
| 11/14/1991 | WO1991017637A1 Ultrasonic transducer |
| 11/14/1991 | DE4014904A1 Ultraschallzerstaeuber fuer haarlacke Ultrasonic atomizer for hair lacquers |
| 11/14/1991 | DE4014846A1 Ultrasonic oscillator for liquid bath cleaning applications - has one or more PXE rings in contact with electrode-insulator layer |
| 11/14/1991 | CA2081472A1 Ultrasonic transducer |
| 11/13/1991 | EP0456302A2 Inter-element mounting for stacked piezoelectric transducers |
| 11/12/1991 | US5065370 Programmable pulse shaper for sonobouy apparatus |
| 11/12/1991 | US5065068 Ferroelectric ceramic transducer |