Patents for B06B 1 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency (14,020) |
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01/05/1994 | EP0426761B1 Acoustic field transducers |
01/05/1994 | DE4322144A1 Vibrator unit using piezoelectric resonator - uses vibrations transmission element between oscillation source and oscillating element exhibiting flexure oscillation anode |
01/05/1994 | DE4321949A1 Vibrator unit using piezoelectric resonator - has coupling between resonator and resonance element attached at oscillation mode |
01/05/1994 | DE4301368A1 Vorrichtung und Verfahren zur Schwingungserregung Apparatus and method for vibrational excitation |
01/05/1994 | DE4301367A1 Adjustable vibration drive with two unbalanced bodies e.g. for filter or conveyor - uses two AC drive motors coupled to two different AC systems, with different frequencies or phase, one of which is produced by semiconductor switch. |
01/05/1994 | DE4221214A1 Electronic acoustic scarecrow for discouraging birds - has microcomputer based sound generator using digitised data in memory played back through unit mounted on pillar |
01/05/1994 | CN2151813Y Improved fixing structure for supersonic vibrator |
01/04/1994 | US5276376 Variable frequency ultrasonic generator with constant power output |
01/04/1994 | US5275167 Acoustic transducer with tab connector |
12/29/1993 | EP0576307A1 Autosynchronous motor and electric traction system using an autosynchronous motor |
12/29/1993 | EP0575363A1 Therapeutic endo-rectal probe, in particular for treatment of prostatic cancer |
12/29/1993 | CN2150930Y Vibrator |
12/28/1993 | US5274608 Sonar transducer |
12/28/1993 | US5274296 Ultrasonic probe device |
12/23/1993 | WO1993026054A1 Variable frequency ultrasonic generator with constant power output |
12/23/1993 | WO1993025762A1 Improved drive mechanism for a vibratory compactor |
12/23/1993 | DE4229156C1 Vibration treatment device for back or spinal injury - has head support attached to frame of treatment, and bed to prevent transmission of vibrations |
12/21/1993 | US5271406 Low-profile ultrasonic transducer incorporating static beam steering |
12/20/1993 | CA2097450A1 Control device for variable momennnt vibrator |
12/15/1993 | EP0573704A1 Method and apparatus for generating seismic waves |
12/15/1993 | CN2149253Y Ultrasonic energy exchanger |
12/14/1993 | CA1325266C Sonic generator |
12/11/1993 | CA2097972A1 Ac variable speed driving apparatus and electric vehicle using the same |
12/09/1993 | WO1993024244A1 Underwater acoustic antenna having a surface sensor |
12/07/1993 | US5268610 Acoustic ink printer |
12/02/1993 | DE4233256C1 Schall- oder Ultraschallwandler Sonic or ultrasonic transducer |
12/01/1993 | EP0489796A4 Fluid actuators |
11/30/1993 | US5267223 Electroacoustic transducer seal |
11/30/1993 | US5267221 Backing for acoustic transducer array |
11/30/1993 | US5266921 Method and apparatus for adjusting vehicle horns |
11/25/1993 | WO1993023179A1 Vibratory screening apparatus |
11/25/1993 | WO1993023178A1 Low frequency sonar projector and method |
11/24/1993 | CN1078666A Ultrasonic vibration generation and use |
11/23/1993 | US5263957 Ultrasonic scalpel blade and methods of application |
11/18/1993 | EP0570177A2 Acoustic resonator |
11/18/1993 | EP0569735A1 An apparatus for sealing by surface fusion of mutually facing surfaces of thermoplastic materials or coatings, and the use of a giant magnetostrictive powder composite for this purpose |
11/18/1993 | EP0233940B1 Endoscopic ultrasonic aspirator with modified working tip and vibration apparatus thereof |
11/17/1993 | CN2146313Y Pneumatic vibrator |
11/11/1993 | DE4214913A1 Laboratory glassware shaker with integral damper system - reducing the tendency for the unit to wander around the bench |
11/10/1993 | EP0569172A2 Improved controller for input-queued packet switch |
11/10/1993 | EP0560811A4 Signalling device |
11/10/1993 | EP0261230B1 Method and apparatus for ultrasonic surgical fragmentation |
11/02/1993 | US5258413 Continuous ultrasonic devulcanization of valcanized elastomers |
10/27/1993 | EP0567426A2 Ultrasonic welding method |
10/26/1993 | US5256920 Acoustic transducer |
10/21/1993 | DE4210994A1 Vibrator for roll-and-press appts. mfg. concrete pipes - is based on crossed beams of steel vibrated vertically by eccentric electric actuators mounted on central circular plate |
10/19/1993 | US5255265 Controller for input-queued packet switch |
10/19/1993 | US5255059 Image forming apparatus |
10/19/1993 | US5254900 Broad beam ultrasonic transducer |
10/19/1993 | US5254504 Method of manufacturing ferroelectric MOSFET sensors |
10/19/1993 | US5253542 Variable moment vibrator usable for driving objects into the ground |
10/19/1993 | CA1323382C Active vibrating device servo magnetic suspension along three axis |
10/12/1993 | US5251630 Pressure pulse generator having an electromagnetic pressure pulse source |
10/07/1993 | DE4211279A1 Friction-welding machine for two thermoplastic components - has electromagnetic coil to vibrate one component against other end against springs attached to holder in plane containing vibration nodes |
10/06/1993 | EP0564239A1 Ultrasonic transducer |
10/06/1993 | CN2143145Y Vibration exciter with an eccentric wheel |
10/05/1993 | US5250869 Ultrasonic transducer |
10/01/1993 | CA2092929A1 Ultrasonic transducer |
09/30/1993 | DE4211284C1 Electronically controlled ground compactor - uses displacement of steering mass in axial direction of vibrator imbalance weights |
09/29/1993 | EP0562326A1 Atmospheric ultrasonic transducer |
09/29/1993 | CN1076802A Method and apparatus for adjusting vehicle horns |
09/28/1993 | US5248216 Compactor |
09/23/1993 | DE4208669A1 Adjusting ultrasonic generator to different loads - carrying out automatic impedance adjustment between generator and load by variable inductance |
09/22/1993 | EP0560811A1 Signalling device. |
09/22/1993 | CN2142372Y Multichannel rotary type ultrasonic generator |
09/22/1993 | CN2142371Y Movable earth quake similation seismic source car |
09/21/1993 | CA2056990C Electromagnetic resonant vibrator |
09/16/1993 | WO1993018625A1 Method and apparatus for making of exact sonar-sounding body with optimal acoustic |
09/16/1993 | WO1993017816A1 Oscillator for continuous casting mould |
09/15/1993 | EP0559963A2 Backing for acoustic transducer array |
09/14/1993 | CA1322226C Method and apparatus for ultrasonic surgical fragmentation and removal of tissue |
09/14/1993 | CA1322111C Integral acoustic emission sensor for manufacturing processes and mechanical components |
09/07/1993 | US5242385 Ultrasonic handpiece |
09/02/1993 | WO1993016814A1 Apparatus for the generation of ultrasonic fields in liquids |
09/01/1993 | EP0557780A1 Ultrasonic transducer with piezoelectric polymer foil |
08/31/1993 | US5239736 Method for making piezoelectric composites |
08/31/1993 | CA1321829C Ultra-thin acoustic transducer and balloon catheter using same in imaging array subassembly |
08/25/1993 | EP0556621A2 Feeder drive |
08/24/1993 | US5239518 Low frequency sonar projector and method |
08/24/1993 | US5239514 Narrow band magnetostrictive acoustic source |
08/24/1993 | US5239219 Electromagnetic vibrating apparatus |
08/24/1993 | CA1321467C Concrete block molding machine having continuously driven vibrating shaft mechanism which can be programmably vibrated and method of programmably vibrating such machines |
08/19/1993 | WO1993015850A1 Ultrasonic surgical apparatus |
08/19/1993 | DE4204029A1 Electromagnetic lifting and oscillating device e.g. for use in flat loudspeakers - has ferromagnetic core column with magnets either side which are surrounded by lifting and oscillating spool |
08/19/1993 | CA2128090A1 Ultrasonic surgical apparatus |
08/17/1993 | US5237542 Wideband, derivative-matched, continuous aperture acoustic transducer |
08/17/1993 | CA2005878C Magnetostrictive transducer |
08/12/1993 | DE4203967A1 System for determining and monitoring preset filling level in container - has piezoelectric vibration system with sensor for contacting filling medium in container if preset level is exceeded and evaluation circuit producing signal depending upon amplifier output frequency. |
08/12/1993 | DE4203715A1 System for establishing or monitoring predetermined filling level in container - has two vibration elements arranged coaxially to each other which project in container contg. filling medium to be monitored one of which is fitted to diaphragm |
08/11/1993 | EP0555162A1 Device enabling gas bubbles contained in a liquid composition to be dissolved |
08/10/1993 | US5233980 Apparatus and method for generating shockwaves for the destruction of targets, particularly in extracorporeal lithotripsy |
08/05/1993 | WO1993015373A1 Process and device for clearing antitank mines targetted to particular tank types |
08/04/1993 | EP0553943A1 Test head for non-destructive testing |
08/04/1993 | EP0553325A1 Probe for measuring acoustic fields of high intensity |
08/04/1993 | EP0520037A4 Vinylidene cyanide alternating copolymers |
08/03/1993 | US5231886 Non-metallic gear shaker |
07/31/1993 | WO1993015500A1 Method and apparatus for adjusting vehicle horns |
07/28/1993 | EP0552696A2 Sound or ultrasound generating apparatus |
07/27/1993 | US5231336 Actuator for active vibration control |
07/27/1993 | US5230921 Flexible piezo-electric membrane |