| Patents for G10K 11 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general (21,150) |
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| 04/03/1979 | CA1051700A1 Ultrasonic wave radiation pattern display system incorporating phase contrast means |
| 03/27/1979 | US4145931 Fresnel focussed imaging system |
| 03/27/1979 | CA1051542A1 Lens transducer for use in marine sonar doppler apparatus |
| 03/27/1979 | CA1051351A1 Cellular sound absorptive structure |
| 03/20/1979 | US4145680 Acoustic imaging system |
| 03/20/1979 | US4144877 Instrument for viscoelastic measurement |
| 03/13/1979 | US4144518 Stabilized-transducer driving device for underwater ultrasonic detection system |
| 03/13/1979 | US4143554 Ultrasonic scanner |
| 03/13/1979 | CA1050653A1 Non-destructive testing |
| 03/06/1979 | US4142603 Adjustable speaker cabinet |
| 02/27/1979 | US4141433 Sound absorbing structure |
| 02/20/1979 | US4140992 Baffled blanket acoustic array |
| 02/20/1979 | US4140022 Acoustic imaging apparatus |
| 02/13/1979 | US4138947 Noise barrier |
| 02/13/1979 | US4138894 Transversal acoustic wave operating device |
| 02/06/1979 | US4137992 Turbojet engine nozzle for attenuating core and turbine noise |
| 02/06/1979 | US4137806 Silencing means for rotary cutting tools particularly circular saws |
| 02/06/1979 | US4137775 Ultrasonic apparatus |
| 02/06/1979 | CA1047865A1 Isolated engine cover |
| 01/30/1979 | US4137470 Magnetostrictive elastic surface wave structure |
| 01/30/1979 | CA1047291A1 Masking sound generator |
| 01/23/1979 | US4135603 Sound suppressor liners |
| 01/23/1979 | US4135466 Arrangement for dampening sound-vibrations in elongate hollow members such as masts of sailing vessels and methods for dampening sound-vibrations |
| 01/16/1979 | US4135142 Non-linear acoustic transducer |
| 01/16/1979 | US4134623 System for processing an electric signal using elastic surface waves |
| 01/16/1979 | US4134324 Sound projector for musical drums |
| 01/10/1979 | EP0000187A1 Method for the reduction of noise during the throttling of vapour and gas flow |
| 01/09/1979 | US4133212 Parabolic focussing thermal detector for low level ultrasonic power measurements |
| 01/09/1979 | US4133157 Damper for sound conducted in solids |
| 12/26/1978 | US4131025 Pulse-echo ultrasonic-imaging display system |
| 12/26/1978 | US4131024 Pulse-echo ultrasonic-imaging display system |
| 12/26/1978 | US4131023 Pulse-echo ultrasonic-imaging display system |
| 12/26/1978 | US4131022 Pulse-echo ultrasonic-imaging display system |
| 12/26/1978 | US4131021 High resolution pulse-echo ultrasonic-imaging display system |
| 12/26/1978 | CA1045268A1 Plaster mixture |
| 12/20/1978 | EP0000068A1 Apparatus for ultrasonic imaging using dynamic focussing |
| 12/20/1978 | EP0000067A1 Device for the ultrasonic investigation and representation of an object |
| 12/19/1978 | US4130813 Surface wave device having enhanced reflectivity gratings |
| 12/19/1978 | US4130175 Fluid-impervious acoustic suppression panel |
| 12/19/1978 | US4130112 Coupling apparatus for ultrasonic medical diagnostic system |
| 12/12/1978 | US4129799 Phase reversal ultrasonic zone plate transducer |
| 12/12/1978 | US4129798 Piezo-resistive device for the electrical read-out of an optical image |
| 12/12/1978 | US4129668 Method of draining parts emerging from hot galvanizing baths |
| 12/05/1978 | US4128615 Method for processing an electric signal using elastic surface waves |
| 12/05/1978 | CA1043836A1 Ultrasonic spraying device |
| 11/28/1978 | US4127034 Digital rectilinear ultrasonic imaging system |
| 11/21/1978 | US4126847 Passive acoustic navigation aid |
| 11/21/1978 | CA1042811A1 Process and apparatus for speech privacy improvement through incoherent masking noise sound generation in open-plan office spaces and the like |
| 11/14/1978 | US4125823 Seismic transducer for marshy terrains |
| 11/14/1978 | US4125218 Megaphone-cup |
| 10/31/1978 | US4123744 Method and apparatus for dynamically investigating a borehole |
| 10/31/1978 | US4123681 Wide band proportional transducer array |
| 10/31/1978 | US4122915 Sound absorbing and diffusing unit, an acoustic screen and/or a partition |
| 10/31/1978 | US4122908 Fan noise suppressor and baffle |
| 10/31/1978 | US4122672 Duct linings |
| 10/24/1978 | US4122430 Sonar system |
| 10/24/1978 | US4122303 Improvements in and relating to active sound attenuation |
| 10/24/1978 | US4121683 Noise silencer assembly |
| 10/17/1978 | US4120291 Ultrasonic scanning apparatus |
| 10/10/1978 | US4119938 Methods and devices for ultrasonic imaging |
| 10/03/1978 | US4118258 Vibration damping through adherence to a layer comprising polyisoprene and the damped structure resulting |
| 09/26/1978 | US4117446 Devices for probing by ultrasonic radiation |
| 09/26/1978 | US4116302 Horn loudspeaker |
| 09/12/1978 | US4114137 Directional sonobuoy |
| 09/12/1978 | US4113049 Noise reduction device for impact tools |
| 09/12/1978 | US4113048 Method of and device for attenuating the noise radiated by gas jets |
| 09/12/1978 | US4112773 Ultrasonic particulate sensing |
| 09/05/1978 | US4112430 Beamformer for wideband signals |
| 09/05/1978 | US4112411 Device for echography by means of focussed ultrasonic beams |
| 09/05/1978 | US4112164 Acoustical laminate |
| 09/05/1978 | US4111390 Apparatus orientating arrangement |
| 09/05/1978 | US4111081 Low non-linearity factor sound attenuating laminate |
| 08/29/1978 | US4110723 Ultrasonic apparatus for medical diagnosis |
| 08/29/1978 | US4109863 Apparatus for ultrasonic nebulization |
| 08/29/1978 | US4109750 Zeno duct sound attenuating means |
| 08/22/1978 | US4109173 High piezoelectric coupling, low diffraction loss, temperature compensated berlinite substrate members for surface acoustic wave devices |
| 08/22/1978 | US4109172 High piezoelectric coupling-temperature compensated berlinite substrate member for surface acoustic wave devices |
| 08/22/1978 | US4109108 Attenuation of sound waves in ducts |
| 08/22/1978 | US4108274 Acoustical apparatus |
| 08/15/1978 | US4107685 Beam forming system |
| 08/15/1978 | US4107626 Digital output force sensor using surface acoustic waves |
| 08/15/1978 | US4106587 Sound-suppressing structure with thermal relief |
| 08/08/1978 | US4104945 Sound resonator for amplifying sound waves |
| 08/01/1978 | US4104610 Ultrasonic wave horn |
| 08/01/1978 | US4103677 Ultrasonic camera |
| 07/25/1978 | US4102204 Ultrasonic section plane examination and display |
| 07/18/1978 | US4101795 Ultrasonic probe |
| 07/18/1978 | US4100993 Acoustic liner |
| 07/18/1978 | CA1035031A1 Underwater object identifying sonar |
| 07/04/1978 | US4098951 Process for eliminating squeal in disc brakes |
| 07/04/1978 | US4098370 Vibration masking noise system |
| 07/04/1978 | US4098132 Ultrasonic search wheel probe |
| 07/04/1978 | US4098128 Method of and apparatus for monitoring slag thickness in refining crucible |
| 06/27/1978 | US4096756 Variable acoustic wave energy transfer-characteristic control device |
| 06/20/1978 | US4095668 Sound suppressing machine cover |
| 06/13/1978 | US4094379 Sound-absorption panel |
| 06/06/1978 | US4093935 Expandable transducer array |
| 06/06/1978 | US4093934 Free-falling sonobuoy |
| 06/06/1978 | US4093482 Heat and sound insulator of curved corrugated paperboard and method of shaping same |
| 06/06/1978 | US4092867 Ultrasonic scanning apparatus |