IPC 6 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 A 63 H 5/00; musical instruments or parts thereof, see the relevant subclass, e.g. G 10 D); ACOUSTICS NOT OTHERWISE PROVIDED FOR (systems using the reflection or reradiation of acoustic waves G 01 S 15/00; generating seismic energy G 01 V 1/02; signalling or calling arrangements, alarm arrangements G 08 B; piezo-electric, electrostrictive or magnetostrictive elements in general H 01 L 41/00; transmission systems using infrasonic, sonic, or ultrasonic waves H 04 B 11/00; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H 04 R) [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 B 06 B, 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 G 04 B, G 04 C; carillons G 10 F 1/10)

the resonating device having the shape of a bell, plate, rod, or tube (bells for towers G 10 K 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 F 16 F 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 (G 10 K 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 H 04 R)

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 H 04 R. [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 B 60 R 13/08; sound insulation for aircraft B 64 C 1/40; sound insulating materials, see the relevant places, e.g. C 04 B 26/00 to C 04 B 38/00; reduction of noise on permanent way E 01 B 19/00; absorption of air-transmitted noise from road or railway traffic E 01 F 8/00; noise insulation, absorption or reflection in buildings E 04 B 1/74; room acoustics E 04 B 1/99; sound insulation in floors E 04 F 15/20; gas-flow silencers or exhaust apparatus for machines or engines in general, for internal-combustion engines F 01 N; intake silencers for internal-combustion engines F 02 M 35/00; suppression of undesired vibrations F 16 F 7/00 to F 16 F 15/00; preventing noise in valves F 16 K 47/02; noise absorbers in pipes F 16 L 55/02; arrangements for suppressing noise in direct-contact trickle coolers F 28 C 1/10; silencers for weapons F 41)

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 G 10 K 11/02; amplifying by focusing G 10 K 11/26)

11/

Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound (G 10 K 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 B 32 B, 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 (G 10 K 11/02, G 10 K 11/36 take precedence; medical stethoscopes A 61 B 7/02) [3]

11/

Reflecting arrangements (G 10 K 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 H 03 F 13/00; networks comprising electro-acoustic elements H 03 H 9/00) [3]

13/

Cones, diaphragms, or the like, for emitting or receiving sound in general (for electromechanical transducers H 04 R 7/00)

15/

Acoustics not otherwise provided for [4]

15/

Synthesis of acoustic waves (synthesis of speech G 10 L) [4]

15/

Sound-producing devices (G 10 K 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]