| Patents for B06B 1 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency (14,020) |
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| 12/26/1978 | US4131874 Inertial balanced dipole hydrophone |
| 12/12/1978 | US4129851 Electroacoustic transducer with a magnetostrictive core |
| 12/12/1978 | US4129850 Balanced transducer |
| 12/12/1978 | US4129668 Method of draining parts emerging from hot galvanizing baths |
| 12/12/1978 | US4129388 Vibrator for flowing granular material |
| 12/05/1978 | US4128370 Manufacture of electroacoustic transducers which require molding an elastomer to the surface of the transducer material |
| 11/28/1978 | US4127788 Piezoelectric stress indicator for mine roofs |
| 11/28/1978 | US4127035 Electromagnetic transducer |
| 11/28/1978 | CA1043129A1 Apparatus having a vibratory component driven by a motor |
| 11/21/1978 | US4126050 Vibrator |
| 11/14/1978 | US4125823 Seismic transducer for marshy terrains |
| 10/31/1978 | US4122725 Length mode piezoelectric ultrasonic transducer for inspection of solid objects |
| 10/24/1978 | US4122430 Sonar system |
| 10/24/1978 | US4121472 Eccentric drive |
| 10/17/1978 | US4120488 Stamping apparatus for applying lining material to iron runners |
| 10/17/1978 | CA1040493A1 Fluid pressure operated impact mechanism |
| 10/03/1978 | US4118649 Transducer assembly for megasonic cleaning |
| 10/03/1978 | US4117764 Vibration attenuating device |
| 09/26/1978 | USRE29785 Replaceable element ultrasonic flowmeter transducer |
| 09/26/1978 | US4117074 Monolithic mosaic piezoelectric transducer utilizing trapped energy modes |
| 09/19/1978 | US4114462 Unbalanced vibrator for an oscillating conveyor or a vibrating screen |
| 09/19/1978 | US4114457 Apparatus for ultrasonic measurement |
| 09/19/1978 | CA1038900A1 Vibratory feeder with suppression of vertically oriented vibrational components |
| 09/19/1978 | CA1038650A1 Two mass vibratory material handling apparatus and methods of manufacturing and fine tuning the same |
| 09/19/1978 | CA1038649A1 Method of producing periodic shocks in one direction |
| 09/12/1978 | US4113809 For administering aerosols |
| 09/12/1978 | US4112776 Earthquake simulator |
| 09/12/1978 | CA1038486A1 Acoustic emission transducer calibration |
| 09/05/1978 | US4111061 Variable eccentric vibration generating mechanism |
| 09/05/1978 | US4111053 Audible bond tester |
| 08/29/1978 | US4110727 Method of manufacturing transducer |
| 08/22/1978 | US4109174 Drive circuits for a piezoelectric stack |
| 08/22/1978 | US4108009 Variable-force vibrator |
| 08/08/1978 | US4106065 Drive circuitry for controlling movable video head |
| 08/08/1978 | US4105004 Ultrasonic wave fuel injection and supply device |
| 08/08/1978 | US4104922 Electromagnetic transducer |
| 08/01/1978 | US4104628 High output audible alarm device utilizing a piezoelectric transducer and voltage doubling means |
| 08/01/1978 | US4104549 Magnetite ferrite for magnetostrictive vibrators |
| 07/25/1978 | US4102207 Electromagnetic ultrasound transducer |
| 07/18/1978 | US4101795 Ultrasonic probe |
| 07/18/1978 | US4100809 Method for excitation and reception of ultrasonic plate waves in workpieces and devices for realizing same |
| 07/11/1978 | US4100527 Multi-driver piezoelectric transducers with single counter-masses, and sonar antennas made therefrom |
| 06/27/1978 | US4096806 Track tamper with hingeable unitary pivotable tamping unit |
| 06/27/1978 | US4096762 Torsional sonic oscillator employing universal joints and tandem arranged oscillator rotors |
| 06/27/1978 | US4096756 Variable acoustic wave energy transfer-characteristic control device |
| 06/20/1978 | US4095460 Device for converting rotary motion into unidirectional motion |
| 06/13/1978 | US4094365 Electrohydraulically operated portable power tool |
| 06/13/1978 | CA1033050A1 Pressure sensitive device with low sensitivity to acceleration |
| 06/06/1978 | US4093885 Transducer assembly vibration sensor |
| 06/06/1978 | US4092903 Vibratory drive mechanism |
| 05/30/1978 | US4092628 Seismic transducer unit for marshy terrains |
| 05/09/1978 | US4088907 Piezoelectric acoustic emission instrumentation |
| 05/09/1978 | US4088716 Material treating apparatus including pneumo-hydraulic vibrator |
| 05/09/1978 | US4088223 Amplitude and frequency adjustable vibration generator |
| 05/09/1978 | US4088062 Fluid pressure operated impact mechanism |
| 05/02/1978 | US4086970 Vibration absorbing device for portable vibrators |
| 04/25/1978 | US4086589 Audible electronic warning system |
| 04/25/1978 | US4085893 Ultrasonic humidifiers, atomizers and the like |
| 04/18/1978 | US4085400 Underwater piezoelectric transducers |
| 04/18/1978 | US4084446 Vibratory machine |
| 04/18/1978 | US4084445 Contra-rotating vibrator |
| 04/04/1978 | US4081889 Method for manufacturing an ultrasonic transducer |
| 03/28/1978 | US4081786 Hydrophone having a directive lobe in the form of a cardioid |
| 03/28/1978 | US4081706 Oscillatory circuit for an ultrasonic cleaning device with feedback from the piezoelectric transducer |
| 03/28/1978 | US4080840 Vibrator device |
| 03/07/1978 | US4078209 Sound communication system with speaker protection for frequencies below a predetermined minimum |
| 03/07/1978 | US4078160 Piezoelectric bimorph or monomorph bender structure |
| 02/28/1978 | USRE29559 Compression accelerometer utilizing a lithium niobate piezoelectric crystal |
| 02/28/1978 | US4075895 Method of obtaining periodical impacts in one direction |
| 02/21/1978 | US4075600 Dual resonance bender transducer |
| 02/21/1978 | US4075516 Diffraction electroacoustic transducer |
| 02/14/1978 | US4074224 Acoustic wave transducer with automatic compensation of the static pressure variations |
| 02/14/1978 | US4074152 Ultrasonic wave generator |
| 02/07/1978 | US4072871 Electroacoustic transducer |
| 01/31/1978 | US4070947 Springless impactor |
| 01/24/1978 | US4070275 Material treating apparatus including pneumo-hydraulic vibrator |
| 01/17/1978 | US4069444 Ultrasonic power generator |
| 01/17/1978 | US4069433 Modular transducer assembly |
| 01/17/1978 | US4068595 Track tamper |
| 01/10/1978 | USRE29512 Vibratory material handling device with variable force |
| 01/10/1978 | US4068209 Electroacoustic transducer for deep submersion |
| 01/10/1978 | US4067244 Self-propelled vibratory plate |
| 01/03/1978 | US4065977 Reciprocating vibrating drive |
| 12/27/1977 | US4065687 Supersonic vibrator with means for detecting vibrating speed |
| 12/20/1977 | US4063557 Ultrasonic aspirator |
| 11/29/1977 | US4060481 Material treating apparatus including pneumo-hydraulic vibrator |
| 11/22/1977 | US4059819 Detector assembly for seismic marine survey |
| 11/15/1977 | US4058019 Unbalance vibration generator |
| 11/01/1977 | US4056761 Sonic transducer and drive circuit |
| 11/01/1977 | US4056742 Transducer having piezoelectric film arranged with alternating curvatures |
| 11/01/1977 | US4056741 Audible signal generating apparatus having selectively controlled audible output |
| 11/01/1977 | US4056123 Hydraulic oscillator |
| 11/01/1977 | US4055886 Variable inductance transducer combined assembly and calibration method |
| 10/18/1977 | US4054848 Ultrasonic oscillator |
| 10/18/1977 | US4054808 Vibration detecting device having a piezoelectric ceramic plate and a method for adapting the same for use in musical instruments |
| 10/04/1977 | US4052627 Ultrasonic ceramic microphone |
| 09/27/1977 | US4051455 Double flexure disc electro-acoustic transducer |
| 09/27/1977 | US4050527 Vibrodriver apparatus |
| 09/20/1977 | US4049981 Piezoelectrically driven ultrasonic tool with cooling |
| 09/13/1977 | US4047992 Turn-on method and apparatus for ultrasonic operations |