WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B06B　METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B 1/40, B23Q 17/12, B24B 31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V 1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K 11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R)

B06B 1/00 Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

B06B 1/02 ・making use of electrical energy (B06B 1/18, B06B 1/20 take precedence)

B06B 1/0207 ・・{Driving circuits (specially adapted for particular applications, see the relevant subclass, e.g. G01; circuits for steering transducer arrays G10K 11/34; basic circuits H03)}

B06B 1/0215 ・・・{for generating pulses, e.g. bursts of oscillations, envelopes}

B06B 1/0223 ・・・{for generating signals continuous in time}

B06B 1/023 ・・・・{and stepped in amplitude, e.g. square wave, 2-level signal}

B06B 1/0238 ・・・・{of a single frequency, e.g. a sine-wave}

B06B 1/0246 ・・・・・{with a feedback signal}

B06B 1/0253 ・・・・・・{taken directly from the generator circuit}

B06B 1/0261 ・・・・・・{taken from a transducer or electrode connected to the driving transducer}

B06B 1/0269 ・・・・{for generating multiple frequencies}

B06B 1/0276 ・・・・・{with simultaneous generation, e.g. with modulation, harmonics}

B06B 1/0284 ・・・・・{with consecutive, i.e. sequential generation, e.g. with frequency sweep}

B06B 1/0292 ・・{Electrostatic transducers, e.g. electret-type}

B06B 1/04 ・・operating with electromagnetism (dynamo-electric motors with vibrating magnet, armature or coil system H02K 33/00)

B06B 1/045 ・・・{using vibrating magnet, armature or coil sytem}

B06B 1/06 ・・operating with piezo-electric effect or with electrostriction (piezo-electric or electrostrictive devices per se H01L 41/00)

B06B 1/0603 ・・・{using a piezo-electric bender, e.g. bimorph}

B06B 1/0607 ・・・{using multiple elements (B06B 1/064 and B06B 1/0688 take precedence)}

B06B 1/0611 ・・・・{in a pile}

B06B 1/0614 ・・・・・{for generating several frequencies}

B06B 1/0618 ・・・・・{of piezo- and non-piezo-electric elements, e.g. `Tonpilz`}

B06B 1/0622 ・・・・{on one surface}

B06B 1/0625 ・・・・・{Annular array}

B06B 1/0629 ・・・・・{Square array}

B06B 1/0633 ・・・・・{Cylindrical array}

B06B 1/0637 ・・・・・{Spherical array}

B06B 1/064 ・・・・・{with multiple active layers}

B06B 1/0644 ・・・{using a single piezo-electric element (B06B 1/0688 takes precedence)}

B06B 1/0648 ・・・・{of rectangular shape}

B06B 1/0651 ・・・・{of circular shape}

B06B 1/0655 ・・・・{of cylindrical shape}

B06B 1/0659 ・・・・{of U-shape}

B06B 1/0662 ・・・・{with an electrode on the sensitive surface}

B06B 1/0666 ・・・・・{used as a diaphragm}

B06B 1/067 ・・・・・{which is used as, or combined with, an impedance matching layer}

B06B 1/0674 ・・・・・{and a low impedance backing, e.g. air}

B06B 1/0677 ・・・・・{and a high impedance backing}

B06B 1/0681 ・・・・・{and a damping structure}

B06B 1/0685 ・・・・・・{on the back only of piezo-electric elements}

B06B 1/0688 ・・・{with foil-type piezo-electric elements, e.g. PVDF}

B06B 1/0692 ・・・・{with a continuous electrode on one side and a plurality of electrodes on the other side}

B06B 1/0696 ・・・・{with a plurality of electrodes on both sides}

B06B 1/08 ・・operating with magnetostriction (magnetostrictive devices per se H01L 41/00)

B06B 1/085 ・・・{using multiple elements, e.g. arrays}

B06B 1/10 ・making use of mechanical energy (B06B 1/18, B06B 1/20 take precedence)

B06B 1/12 ・・operating with systems involving reciprocating masses

B06B 1/14 ・・・the masses being elastically coupled

B06B 1/16 ・・operating with systems involving rotary unbalanced masses {(electrical motors using rotary unbalanced masses in general H02K 7/061)}

B06B 1/161 ・・・{Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied}

B06B 1/162 ・・・・{Making use of masses with adjustable amount of eccentricity}

B06B 1/163 ・・・・・{the amount of eccentricity being only adjustable when the system is stationary (B06B 1/165 takes precedence)}

B06B 1/164 ・・・・・{the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction (B06B 1/165 takes precedence)}

B06B 1/165 ・・・・・{with fluid masses or the like}

B06B 1/166 ・・・・{Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase}

B06B 1/167 ・・・{Orbital vibrators having masses being driven by planetary gearings, rotating cranks or the like}

B06B 1/168 ・・・・{Rotary pendulum vibrators}

B06B 1/18 ・wherein the vibrator is actuated by pressure fluid (B06B 1/20 takes precedence)

B06B 1/183 ・・{operating with reciprocating masses}

B06B 1/186 ・・{operating with rotary unbalanced masses}

B06B 1/20 ・making use of a vibrating fluid {(whistles or sirens per se G10K)}

B06B 3/00 Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

B06B 3/02 ・involving a change of amplitude

B06B 3/04 ・involving focusing or reflecting

B06B 2201/00 Indexing scheme associated with B06B 1/0207 for details covered by B06B 1/0207 but not provided for in any of its subgroups

B06B 2201/20 ・Application to multi-element transducer

B06B 2201/30 ・with electronic damping

B06B 2201/40 ・with testing, calibrating, safety devices, built-in protection, construction details

B06B 2201/50 ・Application to a particular transducer type

B06B 2201/51 ・・Electrostatic transducer

B06B 2201/52 ・・Electrodynamic transducer

B06B 2201/53 ・・・with vibrating magnet or coil

B06B 2201/54 ・・・Electromagnetic acoustic transducers [EMAT]

B06B 2201/55 ・・Piezoelectric transducer

B06B 2201/56 ・・・Foil type, e.g. PVDF

B06B 2201/57 ・・Electrostrictive transducer

B06B 2201/58 ・・Magnetostrictive transducer

B06B 2201/70 ・Specific application

B06B 2201/71 ・・Cleaning in a tank

B06B 2201/72 ・・Welding, joining, soldering

B06B 2201/73 ・・Drilling

B06B 2201/74 ・・Underwater

B06B 2201/75 ・・Repelling animals, insects, humans

B06B 2201/76 ・・Medical, dental

B06B 2201/77 ・・Atomizers