IPC 7 English version G10K !A-G10K 15/12

G10K-G10K01512

SECTION G – PHYSICS

G 10

MUSICAL INSTRUMENTS; ACOUSTICS

G 10 K

SOUND-PRODUCING DEVICES (sound-producing toys A63H 5/00; musical instruments or parts thereof, see the relevant subclass, e.g. G10D); ACOUSTICS NOT OTHERWISE PROVIDED FOR (fluid oscillators or pulse generators for fluid-pressure systems F15B 21/12; systems using the reflection or reradiation of acoustic waves G01S 15/00; generating seismic energy G01V 1/02; signalling or calling arrangements, alarm arrangements G08B; piezo-electric, electrostrictive or magnetostrictive elements in general H01L 41/00; transmission systems using infrasonic, sonic, or ultrasonic waves H04B 11/00; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R) [6]

Notes

(1)

This subclass covers arrangements for generating mechanical vibrations in fluids. [6]

(2)

This subclass covers also the production of sounds which may not be audible to human beings but which are audible to animals.

(3)

In this subclass, the following terms are used with the meanings indicated: [6]

–

"acoustics" and "sound" cover the technical field dealing with mechanical vibrations at all infrasonic-, sonic- and ultrasonic frequencies. However, generation or transmission of mechanical waves, in general, is covered by subclass B06B, subject to the exception specified in Note (1) above. [6]

Devices in which sound is produced by striking a resonating body, e.g. bell, chimes, gong (combinations with clocks or watches G04B, G04C; carillons G10F 1/10)

the resonating device having the shape of a bell, plate, rod, or tube (bells for towers G10K 1/28)

062

electrically operated

063

the sounding member being a bell

064

Operating or striking mechanisms therefor

065

for timed or repeated operation

066

the sounding member being a tube, plate, or rod

067

Operating or striking mechanisms therefor

068

hydraulically operated; pneumatically operated

mechanically operated; Hand bells; Bells for animals

071

Hand bells; Bells for animals

072

Operating or striking mechanisms therefor

074

with rotary clappers or shells

076

for timed or repeated operation

Details or accessories of general applicability

Sounding members; Mounting thereof; Clappers or other strikers

Mountings; Casings

Bells for towers or the like

Details or accessories

Sounding members; Clappers or other strikers

Operating mechanisms

Means for silencing or damping (means or arrangements for avoiding or reducing out-of-balance forces due to motion F16F 15/00)

Supports; Mountings

Rattles or like noise-producing devices

Whistles

Ultrasonic whistles [3]

Sirens

in which the sound-producing member is rotated manually or by a motor (G10K 7/06 takes precedence)

by an electric motor

in which the sound-producing member is driven by a fluid, e.g. by a compressed gas

Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horn, vehicle hooter, buzzer (loudspeakers or like acoustic electromechanical transducers H04R)

driven by gas, e.g. suction operated

by compressed gases, e.g. compressed air

produced by detonation

driven by water or other liquids

driven by mechanical means only

electrically operated

Note

This group does not cover the construction of, or circuits for, broadband-transducers such as loudspeakers or microphones, which are covered by subclass H04R. [6]

122

using piezo-electric driving means [6]

125

with a plurality of active elements [6]

128

using magnetostrictive driving means [6]

using electromagnetic driving means [3]

Self-interrupting arrangements [3]

with means for generating the current by muscle power

Details, e.g. bulb, pump, piston, switch, casing

Sounding members

Mountings; Casings

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 (sound insulation for vehicles B60R 13/08; sound insulation for aircraft B64C 1/40; sound insulating materials, see the relevant places, e.g. C04B 26/00 to C04B 38/00; reduction of noise on permanent way E01B 19/00; absorption of air-transmitted noise from road or railway traffic E01F 8/00; noise insulation, absorption or reflection in buildings E04B 1/74; room acoustics E04B 1/99; sound insulation in floors E04F 15/20; gas-flow silencers or exhaust apparatus for machines or engines in general, for internal-combustion engines F01N; intake silencers for internal-combustion engines F02M 35/00; suppression of undesired vibrations F16F 7/00 to F16F 15/00; preventing noise in valves F16K 47/02; noise absorbers in pipes F16L 55/02; arrangements for suppressing noise in direct-contact trickle coolers F28C 1/10; silencers for weapons F41)

11/

Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators [3]

11/

Acoustic filters [3]

11/

Non-electric sound-amplifying devices, e.g. non-electric megaphones (amplifying by horns G10K 11/02; amplifying by focusing G10K 11/26)

11/

Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound (G10K 11/36 takes precedence) [3]

Note

This group does not cover protecting against, or damping of, acoustic waves adapted for particular applications, which are covered by the subclasses for these applications, provided that there is a specific provision for this aspect. [6]

11/

162

Selection of materials [6]

11/

165

Particles in a matrix [6]

11/

168

Plural layers of different materials, e.g. sandwiches [6]

Note

When classifying in this group, classification is also made in subclass B32B, in so far as any layered product is concerned. [6]

11/

172

using resonance effects [6]

11/

175

using interference effects; Masking sound [6]

11/

178

by electro-acoustically regenerating the original acoustic waves in anti-phase [6]

11/

Methods or devices for transmitting, conducting or directing sound (G10K 11/02, G10K 11/36 take precedence; medical stethoscopes A61B 7/02) [3]

11/

Reflecting arrangements (G10K 11/28 takes precedence) [3]

11/

for conducting sound through hollow pipes, e.g. speaking tubes [3]

11/

for conducting sound through solid bodies, e.g. wire [3]

11/

Sound-focusing or directing, e.g. scanning [3]

11/

using reflection, e.g. parabolic reflector [3]

11/

using refraction, e.g. acoustic lenses [3]

11/

characterised by shape of the source [3]

11/

using electrical steering of transducer arrays, e.g. beam steering [3]

11/

using mechanical steering of transducers [6]

11/

Devices for manipulating acoustic surface waves (electro-acoustic amplifiers H03F 13/00; networks comprising electro-acoustic elements H03H 9/00) [3]

13/

Cones, diaphragms, or the like, for emitting or receiving sound in general (for electromechanical transducers H04R 7/00)

15/

Acoustics not otherwise provided for [4]

15/

Synthesis of acoustic waves (synthesis of speech G10L 13/00) [4]

15/

Sound-producing devices (G10K 15/02 takes precedence) [4]

15/

using electric discharge [4]

15/

Arrangements for producing a reverberation or echo sound [5]

15/

using time-delay networks comprising electromechanical or electro-acoustic devices [5]

15/

using electronic time-delay networks [5]