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ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
Definition statement
This subclass/group covers:

Electrostatic generators, motors, clutches, or holding devices;

Other non-dynamo-electric generators or motors;

Holding or levitation devices using magnetic attraction or repulsion;

Arrangements for starting, regulating, braking, or otherwise controlling such machines unless in conjoint operation with a second machine.

References relevant to classification in this subclass
This subclass/group does not cover:

Dynamo-electric machines

Pumps

Loudspeakers and microphones

{Electrostatic motors}
References relevant to classification in this group
This subclass/group does not cover:

Switches making use of micromechanics

Electrostatic relays; Electro-adhesion relays

Making use of micromechanics

Informative references
Attention is drawn to the following places, which may be of interest for search:

Reflecting element being a micromechanical device and being moved or deformed by electrostatic means

Special rules of classification within this group

Electroactive polymers: see rules of classification in H02N 1/006

{of the gap-closing type (H02N 1/004 takes precedence)}
Definition statement
This subclass/group covers:

electrostatic actuators:

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References relevant to classification in this group
This subclass/group does not cover:

Electrostatic motors, in which a body is moved along a path due to interaction with an electric field travelling along the path

Informative references
Attention is drawn to the following places, which may be of interest for search:

Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metalhydride; Actuators using the difference in osmotic pressure between fluids; Actuators with elements stretchable when contacted with liquid rich in ions, with UV light, with a salt solution

Special rules of classification within this group

The electroactive polymers (EAPs) are of three types:

1) The EAPs based on some electrochemical effect inside the polymer (e.g. or i.e. ionic EAPs). Electric machines with the same are classified in F03G 7/00.

2/3) The EAPs based on electrostrictive, or electrostatic (or a combination of electrostrictive and electrostatic) effects. Electric machines based on electrostrictive / electrostatic EAPs are classified in H02N 2/00.

{Laterally driven motors, e.g. of the comb-drive type}
Definition statement
This subclass/group covers:

Comb shaped motors the direction of movement is parallel to the extension direction of the comb teeth, among others

References relevant to classification in this group
This subclass/group does not cover:

Details of micro-electro-mechanical resonators

Constructional features of micro-electro-mechanical resonators of material which is not piezo-electric, electrostrictive, or magnetostrictive

Informative references
Attention is drawn to the following places, which may be of interest for search:

Details of micro-electro-mechanical resonators

Special rules of classification within this subclass/group

Comb shaped motors with oscillating movement are classified in H02N 1/006

with conductive charge carrier, i.e. capacitor machines
Definition statement
This subclass/group covers:

Including conveyor belt carrying conductive charge carriers charged by induction, i.e. like capacitors.

References relevant to classification in this group
This subclass/group does not cover:

Machines of the corona charging type in which an (usually) insulating belt is charged by charges generated by corona effect

Special rules of classification within this group

Influence type generators built as a conveyor belt can be of two types (according to the way the belt is charged): induction charging type and corona charging type.

The corona charging type usually comprises an insulating belt charged by charges generated by corona effect. This type of machine is classified in H02N 1/12 (even if the belt comprises some conductive element)

The induction charging type are a conveyor belt version (i.e. a linear version) of capacitor machines in which conductive charge carriers are charged by induction ( i.e. like capacitors). This type of machine is classified in H02N 1/08.

in the form of a conveyer belt, e.g. van de Graaff machine
Definition statement
This subclass/group covers:

Machines of the corona charging type in which an (usually) insulating belt is charged by charges generated by corona effect. (if the belt contains some conductive element see Special Rules of Classification).

References relevant to classification in this group
This subclass/group does not cover:

Machines of the induction charging type i.e. in which the belt carries conductive charge carriers charged by induction

Special rules of classification within this group

Influence type generators built as a conveyor belt can be of two types (according to the way the belt is charged): induction charging type and corona charging type.

The corona charging type usually comprises an insulating belt charged by charges generated by corona effect. This type of machine is classified in H02N 1/12 (even if the belt comprise some conductive element)

The induction charging type are a conveyor belt version (i.e. a linear version) of capacitor machines in which conductive charge carriers are charged by induction ( i.e. like capacitors). This type of machine is classified in H02N 1/08.

Electric machines in general using piezo-electric effect, electrostriction or magnetostriction (generating mechanical vibrations in general B06B; piezo-electric, electrostrictive or magnetostrictive devices in general H01L 41/00)
Definition statement
This subclass/group covers:

Electric motors or generators using piezo-electric (PE) or magnetostriction (MS) devices described under H01L 41/00 as primary motion producing or electricity generating parts. In particular:

Linear or rotary motors, including positioners or actuators, based on at least one PE or MS device in cooperation with at least one driven element as mechanical output, e.g. a rotor or translating shaft. The motors can operate based on standing or travelling waves or quasi-static deformation generated by said PE or MS devices;

Generators based on at least one PE or MS device in cooperation with at least one driving element as mechanical input;

Aspects such as the operating principle, mechanical construction built around said PE or MS devices, driving or control circuits or methods, and methods relating to manufacturing of the engines.

Further information:

In this group the PE or MS devices are seen as black boxes which could in principle be replaced by any device of equal electromechanical conversion functionality.

If no relevant details of the PE or MS devices themselves are given classification is done only in this group. If particular details of the PE or MS devices are concerned, e.g. these devices appear to be relevant to other technical fields as well, classification in H01L 41/00 is required. If no details other than the PE or MS devices themselves are described, e.g. PE stacks or benders are just called actuators or generators, classification is done only in H01L 41/00.

References relevant to classification in this group
This subclass/group does not cover:

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Mechanical vibration generators

Adjustable work or tool supports in machining tools, e.g. motorised platforms

Hair clippers; Shavers

Typewriters

PE generators - in tyre sensors- in spark lighters - in firing or trigger mechanisms of weapons - for measurement devices- in photographic flash ignition

Fuel injection in combustion engines - Control circuits or methods for injectors - Injectors- Injection valves

Pumps - Diaphragm type micropumps - Tube type- Oscillatory type, e.g. fans

Brakes

Adjustable optical elements, e.g. motorised lenses or objectives

Informative references
Attention is drawn to the following places, which may be of interest for search:

Liquid wave driven, e.g. ocean powered, generators

Oscillatory wind driven generators

PE or MS devices in general, e.g. PE stacks or benders; Structural details and fabrication thereof

Oscillatory dynamo-electric generators

Electrostatic motors or generators

Motors using thermal drive effects

Motors or generators not provided for elsewhere; Alleged electric or magnetic perpetua mobilia

Special rules of classification within this group

In this group, in the absence of an indication to the contrary, an invention is classified in the last appropriate place.

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:

Motor

Apparatus producing mechanical motion from electrical energy, the motion may be continuous or in separate strokes ;The term includes thus actuators or positioners, wherein the driven element is movable along a certain linear or angular stroke (limited stroke motors)

Ultrasonic motor

PE or MS motor operating in ultrasonic frequency range

perpetua mobilia

latin expression for devices having perpetual motion

Synonyms and Keywords

BAW

Bulk acoustic wave

EAP

Electroactive polymer

MEMS

Microelectromechanical system

MS

Magnetostrictive

PE

Piezoelectric or electrostrictive

PEG

Piezoelectric generator

SAW

Surface acoustic wave

USM

Ultrasonic motor

Travelling wave motorVibration wave motor

PE or MS motor

{producing non-specific motion; Details common to machines covered by H02N 2/02 to H02N 2/16}
Definition statement
This subclass/group covers:

Motors wherein the type of motion is irrelevant, e.g. driving devices which may be used to advance a driven body in arbitrary directions, and details thereof.

Details of linear or rotary motors covered by H02N 2/02 to H02N 2/16 wherein the type of motion is irrelevant, e.g. of mechanical, electrical or thermal nature, such as friction interfaces between driving and driven parts.

References relevant to classification in this group
This subclass/group does not cover:

Details of linear or rotary motors wherein the type of motion is relevant

Informative references
Attention is drawn to the following places, which may be of interest for search:

Casings for dynamo-electric machines

Springs in general

Friction linings

{Inchworm motors}
Definition statement
This subclass/group covers:

Linear motors comprising at least two clamping devices and one intermediate driving device which are excited in sequence to grip and move a driven body.

{Inertial sliding motors}
Definition statement
This subclass/group covers:

Linear motors comprising a driving device which is excited asymmetrically during multiple phases such that in one phase the static friction between a driven body and its support is overcome, thereby effecting a sliding motion between them.

{by pressing one or more vibrators against the driven body}
Definition statement
This subclass/group covers:

Linear motors wherein a driven body, e.g. a translating rail, is moved by vibrations of one or more vibrators pressed against the driven body.

References relevant to classification in this group
This subclass/group does not cover:

Details of the vibrator

using travelling waves { i.e. Rayleigh surface waves}
Definition statement
This subclass/group covers:

Linear motors wherein a driven body is moved by Rayleigh type surface acoustic waves only.

{by pressing one or more vibrators against the rotor}
Definition statement
This subclass/group covers:

Rotary motors wherein a rotor is moved by vibrations of one or more vibrators pressed against the rotor.

References relevant to classification in this group
This subclass/group does not cover:

Details of the vibrator

{Cycloid or wobble motors; Harmonic traction motors}
Definition statement
This subclass/group covers:

Rotary motors wherein a cycloid type motion of a rotor is caused by radial or tangential driving devices excited in different phases.

{Langevin motors}
Definition statement
This subclass/group covers:

Rotary motors wherein a substantially rod-shaped vibrator excited to axial vibrations, e.g. a longitudinal mode, combined with lateral vibrations, e.g. a bending or torsion mode, creates a hula-hoop like progressive wave on its surface, thereby driving a rotor.

using travelling waves { i.e. Rayleigh surface waves}
Definition statement
This subclass/group covers:

Rotary motors wherein a rotor is moved by Rayleigh type surface acoustic waves only.

Generators in which termal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J 45/00)
Definition statement
This subclass/group covers:

Generators based on the collection of free electrical charges in the flow. e.g. inonized gas in a thermal engine exhaust.

References relevant to classification in this group
This subclass/group does not cover:

Discharge tubes functioning as thermionic generators

Use of naturally-occurring electricity, e.g. lightning or static electricity

H02N6/00
Generators in which light radiation is directly converted into electrical energy (solar cells or assemblies thereof H01L 25/00, H01L 31/00)
References relevant to classification in this group
This subclass/group does not cover:

Solar cells or assemblies thereof

Generation of electric power by conversion of infra-red radiation, visible light or ultraviolet light, e.g. using photovoltaic [PV] modules

Electric motors using thermal effects {(motors using expansion or contraction of bodies due to heating or cooling F03G 7/06)}
Definition statement
This subclass/group covers:

Devices working around the Curie point.

References relevant to classification in this group
This subclass/group does not cover:

Thermomagnetic generators, e.g. ;using Nernst-Ettinghausen effect (plurality of solid state components formed in or on a common substrate)

Using thermal change of magnetic permeability, e.g. working above and below the Curie point

Radiation pyrometers

Thermometers using thermo-electric or thermomagnetic elements

Selection of materials for magnetography, e.g. for Curie-point writing

Informative references
Attention is drawn to the following places, which may be of interest for search:

Mechanical-power-producing mechanisms using a shape memory alloy

Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means (by hydrostatic pressure F03B 17/04; { by mechanical means F03G 7/10;} by dynamo-electric means, { including arrangements of permanent magnets interacting with other permanent magnets,} H02K 53/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:

Alleged perpetua mobilia obtained by hydrostatic pressure

Alleged perpetua mobilia obtained by mechanical means

Alleged perpetua mobilia obtained by dynamo-electric means, including arrangements of permanent magnets interacting with other permanent magnets

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:

perpetua mobilia

latin expression for devices having perpetual motion

{Generators}
References relevant to classification in this group
This subclass/group does not cover:

Thermomagnetic generators, e.g. using Nernst-Ettinghausen effect (plurality of solid state components formed in or on a common substrate)

Using thermal change of magnetic permeability, e.g. working above and below the Curie point

Radiation pyrometers

Thermometers using thermo-electric or thermomagnetic elements

Selection of materials for magnetography, e.g. for Curie-point writing

Electrochemical current or voltage generators

H02M6/00 - H01M 14/00

Thermoelectric generators comprising a junction of dissimilar materials, i.e. exhibiting Seebeeck or Peltier effect with or without other thermo-electric effects or thermomagnetic effects

{Motors}
References relevant to classification in this group
This subclass/group does not cover:

Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metalhydride; Actuators using the difference in osmotic pressure between fluids; Actuators with elements stretchable when contacted with liquid rich in ions, with UV light, with a salt solution

Special rules of classification within this group

Electroactive polymers: see rules of classification in H02N 1/006

{Alleged electric or magnetic perpetua mobilia}
References relevant to classification in this group
This subclass/group does not cover:

Perpetua mobilia obtained by the reciprocal attraction / repulsion of a system of magnets arranged as the coils and or the magnets of the normal electrodynamic machines, including systems comprising only permanent magnets

Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect
Informative references
Attention is drawn to the following places, which may be of interest for search:

Supporting structures for apparatus specially adapted for handling semiconductors using electrostatic chucks

Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for (electric or magnetic devices for holding work on machine tools B23Q 3/15; {monorail vehicle propulsion or suspension B60L 13/00}; sliding or levitation devices for railway systems B61B 13/08; material handling devices associated with conveyers incorporating devices with electrostatic or magnetic grippers B65G 47/92; separating thin or filamentary articles from piles using magnetic force B65H 3/16; delivering thin or filamentary articles from magnetic holders by air blast or suction B65H 29/24; bearings using magnetic or electric supporting means F16C 32/04; relieving bearing loads using magnetic means F16C 39/06; magnets H01F 7/00; dynamo-electric clutches or brakes H02K 49/00; {electric furnaces with simultaneous levitation and heating H05B 6/32})
Informative references
Attention is drawn to the following places, which may be of interest for search:

Electric or magnetic devices for holding work on machine tools

Monorail vehicle propulsion or suspension

Sliding or levitation devices for railway systems

Material handling devices associated with conveyers incorporating devices with electrostatic or magnetic grippers

Separating thin or filamentary articles from piles using magnetic force

Delivering thin or filamentary articles from magnetic holders by air blast or suction

Bearings using magnetic or electric supporting means

Relieving bearing loads using magnetic means

Magnets

Apparatus specially adapted for handling semiconductor using electrostatic chucks

Details of electrostatic chucks

Dynamo-electric clutches or brakes

Electric furnaces with simultaneous levitation and heating

Repulsion by the Meissner effect (superconductors or hyperconductors in general H01L 39/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:

Superconductors or hyperconductors in general

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Last Modified: 10/11/2013