197121 ⎘
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooter, buzzer electrically operated Flextensional transducers
LINEAR MOTOR DRIVING MEANS FOR ACOUSTIC EMITTERS
#2SOUND QUALITY OR QUALITY CONTROL APPARATUS, CONTROL METHOD, AND PROGRAM FOR MUSICAL INSTRUMENT OR LIKE
#3Class VIII Flextensional Transducers and Method of Assembly
#4Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
#5Flextensional transducers and related methods
#6Enhanced hour-glass transducer
#7Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
#8Marine Seismic Vibrators and Methods of Use
#9Air pulse generating element and manufacturing method thereof
#10Underwater flextensional transducer
#11Flextensional transducers and related methods
#12Sound transducer
#13Marine seismic vibrator for low frequency and methods of use
#14Apparatus with thermal stress relief mechanism for heat generating coil and associated methods
#15Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
#16Transducer with mesa
#17Multi-function synthetic jet and method of manufacturing same
#18Flextensional transducers and related methods
#19Acoustic logging apparatuses and methods
#20Piezoelectric user interface
#21Portable terminal
#22Gas spring compensation marine acoustic vibrator
#23Pressure-compensated sources
#24Flexural disk transducer shell
#25Marine seismic vibrators and methods of use
#26Multi-function synthetic jet and method of manufacturing same
#27Electromagnetic linear actuators for marine acoustic vibratory sources
#28Ultrasonic probe and ultrasonic imaging apparatus
#29Marine acoustic vibrator having enhanced low-frequency amplitude
#30Device For Actuating A Membrane And A Vehicle Comprising A Device For Actuating A Membrane
#31Oscillator in liquid
#32Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip
#33Cooling acoustic transducer with heat pipes
#34Control system for marine vibrators and seismic acquisition system using such control system
#35Piezoelectric user interface
#36SYSTEM AND METHOD FOR UNDERWATER SEISMIC DATA ACQUISITION
#37Device for actuating a membrane and a vehicle comprising a device for actuating a membrane
#38Seismic vibrator having multiple resonant frequencies in the seismic frequency band using multiple spring and mass arrangements to reduce required reactive mass
#39STRESS-BIASED CYMBALS INCORPORATING A SHAPE MEMORY ALLOY
#40Grip member with haptic feed-back
#41Flextensional vibration-free pressure oscillator
#42Multi piston electro-mechanical transduction apparatus
#43Device for actuating a membrane and a vehicle comprising a device for actuating a membrane
#44Flexural cylinder projector
#45Shear mode folded shell projector
#46Acoustic stimulation method with axial driver actuating moment arms on tines
#47Piezoelectric user interface
#48Convex folded shell projector
#49Device for actuating a membrane and a vehicle comprising a device for actuating a membrane
#50Piezoelectric user interface
#51Underwater sound source
#52High amplification flextensional transduction and devices
#53Highly adaptable seismic source
#54Osmotic acoustic source
#55End driven bender transduction apparatus