| 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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| 05/30/1978 | US4092628 Seismic transducer unit for marshy terrains |
| 05/30/1978 | US4091892 Phased treatment noise suppressor for acoustic duct applications |
| 05/30/1978 | US4091891 Horn speaker |
| 05/23/1978 | US4091160 Glass fabric impregnated with epoxy resin |
| 05/16/1978 | US4090171 Underwater acoustic pressure release reflector |
| 05/16/1978 | US4090153 Piezoelectric substrate, epoxy resin wave absorber |
| 05/16/1978 | US4089227 Apparatus for measuring the radial dimensions of a cylindrical tube by ultrasonics |
| 05/16/1978 | US4089122 Noise attenuation during steam blowing of coated tubes |
| 05/09/1978 | US4088969 Tapped surface acoustic wave delay line |
| 05/09/1978 | US4088157 Hood system for covering an automatically operating machine |
| 04/18/1978 | US4084582 Ultrasonic imaging system |
| 04/18/1978 | US4084367 Sound absorbing panel |
| 04/18/1978 | US4084366 Sound absorbing panel |
| 04/11/1978 | US4084192 Electro-acoustic devices for analysing optical image |
| 04/11/1978 | US4084189 Acoustro-electric scanner by phonon echo phenomenon |
| 04/11/1978 | US4084150 Underwater depth sounder with variable beam transducer |
| 04/04/1978 | US4082160 Silencer for exhausting gas streams |
| 03/28/1978 | US4081786 Hydrophone having a directive lobe in the form of a cardioid |
| 03/28/1978 | US4080839 Testing method using ultrasonic energy |
| 03/28/1978 | US4080838 Method and apparatus for controlling ultrasonic waves |
| 03/14/1978 | US4079352 Echo sounding technique |
| 03/07/1978 | US4078186 Magnetically tuned, surface acoustic wave device |
| 03/07/1978 | US4077790 Noise suppressor for a row of rotary fiberizers |
| 02/28/1978 | US4077023 Elastic waveguide |
| 02/28/1978 | US4075725 Sonobuoy casing |
| 02/21/1978 | US4075598 Ultrasonic wave transmitting and receiving apparatus |
| 02/21/1978 | US4075288 Vibration-damping material |
| 02/21/1978 | US4074491 Clip shock mount |
| 02/14/1978 | US4073991 Perforated, embossed film to foam laminates having good acoustical properties and the process for forming said |
| 02/14/1978 | US4073366 Disposable noise reducing hearing aid attachment |
| 01/31/1978 | US4071179 Electric storage battery |
| 01/31/1978 | US4071112 Horn loudspeaker |
| 01/31/1978 | US4071110 Underwater voice communicator |
| 01/31/1978 | US4070905 Ultrasonic beam scanning |
| 01/24/1978 | US4070642 Ultrasonic wave transmitting and receiving apparatus |
| 01/24/1978 | US4069768 Device for controlling a propagation direction of noise |
| 01/17/1978 | US4069467 Suppression of out-of-focus echoes in ultrasonic scanning |
| 01/17/1978 | US4069433 Modular transducer assembly |
| 01/17/1978 | US4069401 Acoustical frictional resistance construction and apparatus for manufacturing an acoustical resistance and an associated magnetic system |
| 01/17/1978 | US4069395 Analog dereverberation system |
| 01/17/1978 | US4069083 Curing a carborane polysiloxane adhesive; electrically coupling an acoustic transducer to a surface |
| 01/17/1978 | US4068736 Method and device for reducing noise |
| 01/17/1978 | US4068523 Non-destructive testing |
| 01/03/1978 | US4066995 Acoustic isolation for a telemetry system on a drill string |
| 01/03/1978 | US4066842 Method and apparatus for cancelling room reverberation and noise pickup |
| 01/03/1978 | US4065976 Mechanical scanning method and apparatus for ultrasonic imaging, or the like |
| 01/03/1978 | US4065821 Acoustic buoy |
| 12/27/1977 | US4065748 Transmitting and receiving multipath sonar antenna utilizing a single acoustic lens |
| 12/27/1977 | US4064961 Slanted cavity resonator |
| 12/27/1977 | US4064960 Noise barrier |
| 12/13/1977 | US4063214 Lens transducer for use in marine sonar doppler apparatus |
| 12/13/1977 | US4063198 Acoustic ridge interactive structure |
| 12/13/1977 | US4062422 Antifouling damping system for sonar domes |
| 12/06/1977 | US4061816 Integrally sintered ceramic complex and method of manufacturing the same |
| 12/06/1977 | US4061415 Nutating radiation deflecting method and apparatus |
| 11/29/1977 | US4060850 Beam former using bessel sequences |
| 11/29/1977 | US4060792 Hard clipped beam former |
| 11/22/1977 | US4059098 Flexible ultrasound coupling system |
| 11/15/1977 | US4058745 Controlled gap surface acoustic wave device |
| 11/15/1977 | US4058003 Ultrasonic electronic lens with reduced delay range |
| 11/01/1977 | US4056801 Apparatus for locating sources of sound in water |
| 11/01/1977 | US4056793 Acoustic waveguide resonator |
| 11/01/1977 | US4056715 Device for forming channels using detectors spaced out on a circular base |
| 11/01/1977 | US4056161 Sound attenuation material |
| 10/25/1977 | US4055821 Acoustic ridge transversal filter |
| 10/25/1977 | US4055819 Acoustic ridge delay line |
| 10/18/1977 | US4054751 Masking noise generator |
| 10/11/1977 | US4052888 Apparatus for the ultrasonic examination of bodies having non-planar surfaces |
| 10/04/1977 | US4052720 Dynamic sound controller and method therefor |
| 10/04/1977 | US4052564 Masking sound generator |
| 10/04/1977 | US4051582 Techniques for producing an acousto-optical component or a wide-band ultrasonic component |
| 09/27/1977 | US4050541 Acoustical transformer for horn-type loudspeaker |
| 09/20/1977 | US4050056 Electroacoustic transducer design for eliminating phantom target errors in sound ranging systems |
| 09/13/1977 | US4048366 Noise control materials |
| 09/13/1977 | US4048004 Ultrasonic |
| 08/30/1977 | US4044611 Expendable oceanography probe |
| 08/30/1977 | US4044594 Ultrasonic track testing carriage |
| 08/23/1977 | US4044273 Ultrasonic transducer |
| 08/23/1977 | US4044203 Active control of sound waves |
| 08/23/1977 | US4043686 Stabilized ball joint |
| 08/23/1977 | US4043022 Method of manufacturing double-structure sound absorbing wall for motor vehicle |
| 08/16/1977 | US4042930 Device for forming channels using detectors spaced out on a circular base |
| 08/16/1977 | US4042845 Transducer assembly and method for radiating and detecting energy over controlled beam width |
| 08/16/1977 | US4042061 Cell-box-type noise barrier having large magnitude of transmission loss and noise insulating method |
| 08/09/1977 | US4040886 Apparatus for treating a workpiece |
| 08/09/1977 | US4040503 Horn speaker |
| 08/02/1977 | US4039753 Singing suppressor device |
| 07/26/1977 | US4038629 Propagation delay meter |
| 07/26/1977 | US4037465 Ultrasonic probe system for the bore-side inspection of tubes and welds therein |
| 07/19/1977 | US4037179 Mechanical filter device |
| 07/12/1977 | US4035775 Temperature compensated acoustic surface wave device |
| 07/12/1977 | US4035535 Gas turbine engines |
| 07/12/1977 | US4034826 Silencer for ventilation ducts |
| 07/12/1977 | US4034744 Ultrasonic scanning system with video recorder |
| 07/05/1977 | US4034288 System for measuring the frequency of an electrical signal |
| 07/05/1977 | US4033431 Acoustic crossover speaker enclosure |
| 07/05/1977 | US4033428 Muffler for intermittent blasts of air from pneumatic tools, valves and the like |
| 07/05/1977 | US4033178 Fluid coupled test probe |
| 06/21/1977 | US4031502 Hydrophone with acoustic reflector |
| 06/21/1977 | US4030564 Loud speaker with stable damping |