Patents
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)
02/1993
02/17/1993EP0527651A1 Acoustic standoff for ultrasound scanhead
02/17/1993EP0490924A4 Method of manufacturing glass reinforced concrete building products
02/17/1993CN1019919C Reflecting sound microscope with acoustic mirror
02/16/1993US5187692 Acoustic transfer function simulating method and simulator using the same
02/16/1993US5187332 Coupling and recovering seismic detection sensors
02/16/1993US5186996 Sound damping multi-layer structure
02/16/1993US5186428 Depth gauge transducer retractor device
02/09/1993US5185504 Acoustic board
02/07/1993WO1993002808A1 Probe for measuring acoustic fields of high intensity
02/07/1993CA2093437A1 Probe for measuring acoustic fields of high intensity
02/04/1993WO1993002445A1 High efficiency fan with adaptive noise cancellation
02/04/1993DE4125621A1 Extender material for ultrasonic diagnostic investigations - comprises thermo-reversibly crosslinked styrene]-butadiene] block copolymer in liq. paraffin, has good mechanical stability and acoustic properties matched to tissue
02/04/1993CA2113068A1 High efficiency fan with adaptive noise cancellation
02/03/1993EP0526111A2 Automatic sound controlling apparatus
02/03/1993EP0525648A2 Vibrator for producing a body-felt vibration
02/03/1993EP0525456A1 System using plurality of adaptive digital filters
02/03/1993EP0335878B1 Echography probe with improved connection circuit
02/02/1993US5183049 Method for forming and ultrasonic image
01/1993
01/26/1993US5182732 Reversible fish finder apparatus
01/26/1993CA1313288C Sound dampening composition and method of using the composition
01/20/1993EP0523455A1 Ultrasonic receiving apparatus
01/20/1993EP0523429A1 Elastic noise attenuating cover sheet for walls of sound producing structures
01/20/1993EP0332637B1 Probe provided with a concave arrangement of piezoelectric elements for ultrasound apparatus
01/20/1993CN1068026A Safety helmet with alarm for high voltage
01/19/1993US5181252 High compliance headphone driving
01/14/1993DE4221290A1 Aktives vibrationsregelsystem Active vibration system of rules
01/14/1993DE4219648A1 Controlling vibrating system e.g. crusher, conveyor chute - generating equal and opposite vibrations to minimise emanations, esp. of air or sound vibrations
01/13/1993EP0521868A1 Digital virtual earth active cancellation system
01/12/1993US5179255 Baseball bat having the functions of resonators and microphones
01/07/1993WO1993000675A1 Vibration damping constructions using aromatic epoxy high temperature damping materials
01/07/1993EP0521740A1 Material for acoustic protection and device incorporating such material
12/1992
12/29/1992US5175709 Ultrasonic transducer with reduced acoustic cross coupling
12/29/1992US5175708 Battery powdered acoustic transponder for use in underwater environment
12/29/1992US5175401 Segmented resistance acoustic attenuating liner
12/29/1992US5174280 Shockwave source
12/29/1992US5174155 Ultrasonic pipe inspection system
12/24/1992DE4220197A1 Noise- and vibration-damping component - is made of poreless natural rubber with additives
12/24/1992DE4120259A1 Acoustic wave generator for medical disintegration of calculi in body organs - uses vented air-free pressurised liquid as energy transmission medium
12/23/1992EP0519112A1 Reflector and method of generating a reflector shape
12/23/1992EP0518993A1 Method and apparatus for the transmission of an acoustic signal in a photoacoustic cell.
12/23/1992EP0518893A1 Ultrasonic testing machine with a rotor with a plurality of testing heads and a transmission device for connecting the testing heads to a stationary electronic device.
12/22/1992US5173882 Sonar system for and method of arctic seafloor reconnaissance
12/16/1992CN2125181U Whistle with sound box
12/15/1992US5172416 Active attenuation system with specified output acoustic wave
12/15/1992US5172344 Deep submergence transducer
12/15/1992US5172343 Aberration correction using beam data from a phased array ultrasonic scanner
12/15/1992US5171943 Tubewave damper probe for seismic applications
12/10/1992WO1992021991A1 Method for forming a plurality of sonar channels and device for implementing such method
12/10/1992WO1992021935A1 Acoustic web edge sensor
12/10/1992DE4125375C1 Pressure pulse source for lithotripsy - has pulsed diaphragm in acoustic medium with layer of lower acoustic impedance
12/09/1992EP0517557A1 Device to retain a loose underwater structure in case of an explosion
12/09/1992EP0517525A2 Noise suppressor
12/09/1992EP0517497A2 Earphone
12/09/1992EP0516695A1 Noise reducing system.
12/08/1992US5170433 Active vibration control
12/08/1992US5170018 Method and apparatus for tube-wave suppression
12/02/1992EP0515557A1 Method and device for generating an ultrasonic wave
12/02/1992EP0515518A1 Repetitive sound or vibration phenomena cancellation arrangement with multiple sensors and actuators
12/01/1992WO1992022054A1 Noise control apparatus
12/01/1992WO1992022053A1 Noise attenuation panel
12/01/1992US5168474 Acoustic marine aquatic life detector with resonance chamber
12/01/1992US5168130 Noise reducing apparatus
12/01/1992US5168129 Variable acoustics modular performance shell
12/01/1992US5167234 Ultrasonic probe having rotary refracting member
12/01/1992US5167165 Device for positioning a measuring element
12/01/1992CA2095919A1 Noise attenuation panel
11/1992
11/26/1992WO1992020523A1 Sound-damping sandwich material and a method for its manufacture
11/24/1992US5165627 Fuselage wall inner lining plate
11/24/1992US5165414 Method of operating an ultrasound
11/17/1992US5164919 Fluidic sonar sensor
11/17/1992US5164627 Phased array acoustic signal processor
11/17/1992US5164550 Intake muffler
11/12/1992WO1992020063A1 Method and apparatus for the active reduction of compression waves
11/12/1992DE4212176A1 Verfahren und vorrichtung zur reduzierung von schwingungen Method and device for reduction of vibrations
11/12/1992DE4115096A1 Device for producing ultrasound vibrations in cleaning bath - comprises separated areas with ultrasound generators in transmission wall reducing corrosion
11/11/1992EP0512445A2 Active noise attenuation system using the radio signal for the calibration cycle
11/10/1992WO1992019398A1 Method for producing a sound-dampened automotive enclosure and article produced thereby
11/10/1992US5163167 Sound wave guide
11/10/1992CA2102708A1 Method for producing a sound-dampened automotive enclosure and article produced thereby
11/05/1992DE4114180A1 Ultrasonic transducer for echo sounding distance measurement - has damping material ring applied to oscillation membrane on side facing propagation medium
11/05/1992DE4113628A1 Sound absorbing material with porous structure - is anisotropic with different moduli of elasticity in different directions
11/04/1992EP0327617B1 Improvements relating to noise reduction systems
11/03/1992US5161126 Acoustic flute web edge sensor
11/03/1992US5160816 Two dimensional sound diffusor
11/03/1992US5160815 Megaphone apparatus
11/03/1992US5160336 Device for acting by ultrasonic vibrations on an object
11/03/1992US5159931 Apparatus for obtaining a three-dimensional reconstruction of anatomic structures through the acquisition of echographic images
11/03/1992CA1309621C Apparatus for deploying and supporting a large aperture volumetricarray in a medium
10/1992
10/29/1992WO1992018976A1 Tilted electrode holder for an ellipsoidal reflector
10/29/1992WO1992018975A1 Active noise recuction
10/29/1992WO1992018974A1 Expandable sonar array
10/28/1992EP0511149A1 Noise suppression device, especially for ventilation systems
10/28/1992EP0510974A1 Vibration damping material
10/28/1992EP0510864A2 Multi-channel active acoustic attenuation system
10/26/1992CA2067480A1 Acoustic protection material and apparatus including such material
10/21/1992EP0509742A2 Microphone apparatus
10/21/1992EP0509603A1 Sound absorptive material
10/21/1992EP0509166A1 Honeycomb noise attenuation structure
10/20/1992WO1992019080A1 Improvements in and relating to transmission line loudspeakers
10/20/1992US5157374 Alarm buzzer and accessory