|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | G10 |
MUSICAL INSTRUMENTS; ACOUSTICS

|  | G10 |
Note(s) This class covers generally all sound-emitting devices, whether or not they may be considered as being musical. The term "musical instrument", used in this class, should not be understood as excluding devices emitting a single sound signal. For the convenience of users, the following Class Index is given in place of Sub-class Indexes, to show the grouping of the elaborations belonging to different sub-classes, under the three fundamental types: Wind instruments String instruments Percussion instruments which relate clearly to the majority of instruments. There are of course some instruments of which the principle of operation belongs less clearly to one of these three types. They correspond to groups Fulltext... Hierarchy... Expanded...G10D 17/00 and Fulltext... Hierarchy... Expanded...G10K 7/00, Fulltext... Hierarchy... Expanded...G10K 9/00, Fulltext... Hierarchy... Expanded...G10K 10/00, all the other groups normally finding a definite place.

|  | G10K |
SOUND-PRODUCING DEVICES (sound-producing toys Fulltext... Hierarchy... Expanded...A63H 5/00; musical instruments or parts thereof, see the relevant sub-class, e.g. Fulltext... Hierarchy... Expanded...G10D); ACOUSTICS NOT OTHERWISE PROVIDED FOR (generating or transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency for performing mechanical work Fulltext... Hierarchy... Expanded...B06B; direction-finding, locating, distance or velocity measuring by means of infrasonic, sonic or ultrasonic waves Fulltext... Hierarchy... Expanded...G01S; generating seismic energy Fulltext... Hierarchy... Expanded...G01V 1/02; signalling or calling arrangements, alarm arrangements Fulltext... Hierarchy... Expanded...G08B; electromechanical transducers Fulltext... Hierarchy... Expanded...H01L, Fulltext... Hierarchy... Expanded...H04R; transmission systems using infrasonic, sonic, or ultrasonic waves Fulltext... Hierarchy... Expanded...H04B 11/00)

|  | G10K |
Note(s) This sub-class covers also the production of sounds which may not be audible to human beings but which are audible to animals.

|  | G10K 1/00 |
Devices in which sound is produced by striking a resonating body, e.g. bell, chimes, gong (combinations with clocks or watches Fulltext... Hierarchy... Expanded...G04B, Fulltext... Hierarchy... Expanded...G04C; carillons Fulltext... Hierarchy... Expanded...G10F 1/10)

|  | G10K 1/06 |
· | the resonating device having the shape of a bell, plate, rod, or tube (bells for towers Fulltext... Hierarchy... Expanded...G10K 1/28)

|  | G10K 1/062 |
· · | electrically operated

|  | G10K 1/063 |
· · · | the sounding member being a bell

|  | G10K 1/064 |
· · · · | Operating or striking mechanisms therefor

|  | G10K 1/065 |
· · · · · | for timed or repeated operation

|  | G10K 1/066 |
· · · | the sounding member being a tube, plate, or rod

|  | G10K 1/067 |
· · · · | Operating or striking mechanisms therefor

|  | G10K 1/068 |
· · | hydraulically operated; pneumatically operated

|  | G10K 1/07 |
· · | mechanically operated; Hand bells; Bells for animals

|  | G10K 1/071 |
· · · | Hand bells; Bells for animals

|  | G10K 1/072 |
· · · | Operating or striking mechanisms therefor

|  | G10K 1/074 |
· · · · | with rotary clappers or shells

|  | G10K 1/076 |
· · · · | for timed or repeated operation

|  | G10K 1/08 |
· · | Details or accessories of general applicability

|  | G10K 1/10 |
· · · | Sounding members; Mounting thereof; Clappers or other strikers

|  | G10K 1/26 |
· · · | Mountings; Casings

|  | G10K 1/28 |
· | Bells for towers or the like

|  | G10K 1/30 |
· · | Details or accessories

|  | G10K 1/32 |
· · · | Sounding members; Clappers or other strikers

|  | G10K 1/34 |
· · · | Operating mechanisms

|  | G10K 1/36 |
· · · | Means for silencing or damping (means or arrangements for avoiding or reducing out-of-balance forces due to motion Fulltext... Hierarchy... Expanded...F16F 15/00)

|  | G10K 1/38 |
· · · | Supports; Mountings

|  | G10K 3/00 |
Rattles or like noise-producing devices

|  | G10K 5/00 |
Whistles

|  | G10K 5/02 |
· | Ultrasonic whistles [3]

|  | G10K 7/00 |
Sirens

|  | G10K 7/02 |
· | in which the sound-producing member is rotated manually or by a motor (Fulltext... Hierarchy... Expanded...G10K 7/06 takes precedence)

|  | G10K 7/04 |
· · | by an electric motor

|  | G10K 7/06 |
· | in which the sound-producing member is driven by a fluid, e.g. by a compressed gas

|  | G10K 9/00 |
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horn, vehicle hooter, buzzer (electromechanical transducers Fulltext... Hierarchy... Expanded...H04R)

|  | G10K 9/02 |
· | driven by gas, e.g. suction operated

|  | G10K 9/04 |
· · | by compressed gases, e.g. compressed air

|  | G10K 9/06 |
· · | produced by detonation

|  | G10K 9/08 |
· | driven by water or other liquids

|  | G10K 9/10 |
· | driven by mechanical means only

|  | G10K 9/12 |
· | electrically operated

|  | G10K 9/12 |
Note(s) Group Fulltext... Hierarchy... Expanded...G10K 9/12 deals with construction or circuits of vibrators whose output is of frequency unrelated to that of the electric supply. [3]

|  | G10K 9/13 |
· · | using electromagnetic driving means [3]

|  | G10K 9/14 |
( transferred to Fulltext... Hierarchy... Expanded...G10K 9/13, covered by Fulltext... Hierarchy... Expanded...G10K 9/12 )

|  | G10K 9/15 |
· · · | Self-interrupting arrangements [3]

|  | G10K 9/16 |
· · | with means for generating the current by muscle power

|  | G10K 9/18 |
· | Details, e.g. bulb, pump, piston, switch, casing

|  | G10K 9/20 |
· · | Sounding members

|  | G10K 9/22 |
· · | Mountings; Casings

|  | G10K 10/00 |
Sound-producing devices not otherwise provided for

|  | G10K 10/02 |
· | using electric discharge [3]

|  | G10K 11/00 |
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other infrasonic, sonic or ultrasonic acoustic waves in general (sound-insulating materials, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...C04B 43/00; noise insulation, absorption or reflection in buildings Fulltext... Hierarchy... Expanded...E04B 1/74; room acoustics Fulltext... Hierarchy... Expanded...E04B 1/99; sound insulation in floors Fulltext... Hierarchy... Expanded...E04F 15/20; gas-flow silencers or exhaust apparatus for machines or engines in general, for internal-combustion engines Fulltext... Hierarchy... Expanded...F01N; intake silencers for internal-combustion engines Fulltext... Hierarchy... Expanded...F02M 35/00; suppression of undesired vibrations Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16F 7/00-F16F 15/00; preventing noise in valves Fulltext... Hierarchy... Expanded...F16K 47/02; noise absorbers in pipes Fulltext... Hierarchy... Expanded...F16L 55/02; silencers for weapons Fulltext... Hierarchy... Expanded...F41)

|  | G10K 11/02 |
· | Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators

|  | G10K 11/04 |
· · | Acoustic filters

|  | G10K 11/06 |
( transferred to Fulltext... Hierarchy... Expanded...G10K 11/26 )

|  | G10K 11/08 |
· | Non-electric sound-amplifying devices, e.g. non-electric megaphones (amplifying by horns per se Fulltext... Hierarchy... Expanded...G10K 11/02; amplifying by focussing per se Fulltext... Hierarchy... Expanded...G10K 11/26)

|  | G10K 11/10 |
( transferred to Fulltext... Hierarchy... Expanded...G10K 9/00, Fulltext... Hierarchy... Expanded...G10K 11/02, Fulltext... Hierarchy... Expanded...G10K 11/08 )

|  | G10K 11/12 |
( transferred to Fulltext... Hierarchy... Expanded...G10K 11/22 )

|  | G10K 11/14 |
( transferred to Fulltext... Hierarchy... Expanded...G10K 11/24 )

|  | G10K 11/16 |
· | Methods or devices for damping of sounds (Fulltext... Hierarchy... Expanded...G10K 11/36 takes precedence) [3]

|  | G10K 11/18 |
· | Methods or devices for transmitting, conducting or directing sound (Fulltext... Hierarchy... Expanded...G10K 11/02, Fulltext... Hierarchy... Expanded...G10K 11/36 take precedence; medical stethoscopes Fulltext... Hierarchy... Expanded...A61B 7/02) [3]

|  | G10K 11/20 |
· · | Reflecting arrangements (Fulltext... Hierarchy... Expanded...G10K 11/28 takes precedence) [3]

|  | G10K 11/22 |
· · | for conducting sound through hollow pipes, e.g. speaking tubes [3]

|  | G10K 11/24 |
· · | for conducting sound through solid bodies, e.g. wire [3]

|  | G10K 11/26 |
· · | Sound-focussing or directing [3]

|  | G10K 11/28 |
· · · | using reflection, e.g. parabolic reflector [3]

|  | G10K 11/30 |
· · · | using refraction, e.g. acoustic lenses [3]

|  | G10K 11/32 |
· · · | characterised by shape of the source [3]

|  | G10K 11/34 |
· · · | using electrical steering of transducer arrays, e.g. beam steering [3]

|  | G10K 11/36 |
· | Devices for manipulating acoustic surface waves (electro-acoustic amplifiers Fulltext... Hierarchy... Expanded...H03F 13/00; networks comprising electro-acoustic devices Fulltext... Hierarchy... Expanded...H03H 9/00) [3]

|  | G10K 13/00 |
Cones, diaphragms, or the like, for emitting or receiving sound in general (for electromechanical transducers Fulltext... Hierarchy... Expanded...H04R 7/00)