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CPC
COOPERATIVE PATENT CLASSIFICATION
F03G
SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR (arrangements in connection with power supply in vehicles from force of nature B60K 16/00; electric propulsion with power supply in vehicles from force of nature B60L 8/00) [2021-08]
NOTE

  • In this subclass, the following term is used with the meaning indicated:
    • "motors" means mechanisms for producing mechanical power from potential energy of solid bodies.
F03G 1/00
Spring motors (spring-driven toys A63H; springs in general F16F; precision time mechanisms, e.g. for clocks or watches, G04B) [2021-08]
F03G 1/02
.
characterised by shape or material of spring, e.g. helical, spiral, coil [2021-08]
WARNING

F03G 1/022
. .
{using spiral springs} [2021-08]
WARNING

F03G 1/024
. .
{using helical springs} [2021-08]
WARNING

F03G 1/026
. .
{using torsion springs} [2021-08]
WARNING

F03G 1/028
. .
{using leaf springs} [2021-08]
WARNING

F03G 1/029
. .
{using two or more springs} [2021-08]
WARNING

F03G 1/032
. .
{using bimetals} [2021-08]
WARNING

F03G 1/04
. .
using rubber springs [2013-01]
F03G 1/06
.
Other parts or details [2013-01]
F03G 1/08
. .
for winding [2013-01]
F03G 1/10
. .
for producing output movement other than rotary, e.g. vibratory [2013-01]
F03G 3/00
Other motors, e.g. gravity or inertia motors [2021-08]
WARNING

F03G 3/02
.
using wheels with circumferentially-arranged compartments co-operating with solid falling bodies (F03G 3/04 takes precedence) [2013-01]
F03G 3/04
.
driven by sand or like fluent solid material [2013-01]
F03G 3/06
.
using pendulums [2013-01]
F03G 3/08
.
using flywheels [2021-08]
WARNING

F03G 3/083
. .
{deviating the flywheel axis, e.g. using gyroscopic effects like precession or nutation} [2021-08]
WARNING

F03G 3/087
.
{Gravity or weight motors (using solid falling bodies F03G 3/02; using sand or the like F03G 3/04)} [2021-08]
WARNING

  • Groups F03G 3/087, F03G 3/091 and F03G 3/094 are incomplete pending reclassification of documents from group F03G 3/00.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03G 3/091
. .
{using unbalanced wheels} [2021-08]
F03G 3/094
. .
{specially adapted for potential energy power storage stations; combinations of gravity or weight motors with electric motors or generators} [2021-08]
F03G 3/096
.
{adapted for pumping or conveying fluids} [2021-08]
WARNING

F03G 3/097
.
{Motors specially adapted for creating a reciprocating movement, e.g. by rotating eccentric masses} [2021-08]
WARNING

F03G 4/00
Devices for producing mechanical power from geothermal energy [2021-08]
WARNING

F03G 4/001
.
{Binary cycle plants where the source fluid from the geothermal collector heats the working fluid via a heat exchanger} [2021-08]
F03G 4/02
.
with direct {working} fluid contact [2021-08]
F03G 4/023
.
{characterised by the geothermal collectors} [2021-08]
F03G 4/026
. .
{open loop geothermal collectors} [2021-08]
F03G 4/029
. .
{closed loop geothermal collectors, i.e. the fluid is pumped through a closed loop in heat exchange with the geothermal source, e.g. via a heat exchanger} [2021-08]
F03G 4/031
.
{using waste heat from a primary power cycle to produce mechanical power in a second cycle} [2021-08]
F03G 4/033
.
{having a Rankine cycle} [2021-08]
F03G 4/035
. .
{of the Organic Rankine Cycle [ORC] type or the Kalina Cycle type} [2021-08]
F03G 4/037
.
{having other power cycles, e.g. Stirling, transcritical or supercritical cycles; combined with other power sources, e.g. wind, gas or nuclear} [2021-08]
F03G 4/04
.
with deep-well turbo pump [2021-08]
F03G 4/045
.
{with heat pumps} [2021-08]
F03G 4/06
.
with fluid flashing [2021-08]
F03G 4/063
.
{with energy storage devices} [2021-08]
F03G 4/066
. .
{of the non-thermal type, e.g. springs or batteries} [2021-08]
F03G 4/069
.
{characterised by the brine or scale treatment, e.g. brine desalination, scale deposit prevention or corrosion-proofing} [2021-08]
F03G 4/072
.
{Controlling or monitoring} [2021-08]
F03G 4/074
.
{Safety arrangements} [2021-08]
F03G 5/00
Devices for producing mechanical power from muscle energy (driving cycles B62M) [2021-08]
WARNING

F03G 5/02
.
of endless-walk type, e.g. treadmills [2013-01]
F03G 5/025
. .
{Treadmills (for animals F03G 5/04)} [2021-08]
F03G 5/04
. .
Horsemills or the like [2013-01]
F03G 5/042
. . .
{Traction devices, shock absorbers or whipping devices for horsemills} [2013-01]
F03G 5/045
. . .
{Security devices for horsemills} [2013-01]
F03G 5/047
. . .
{Transmissions or couplings for horsemills} [2013-01]
F03G 5/06
.
other than of endless-walk type [2021-08]
WARNING

F03G 5/061
. .
{driven by animals} [2021-08]
WARNING

F03G 5/062
. .
{driven by humans} [2021-08]
WARNING

F03G 5/063
. . .
{operated by the leg or foot} [2021-08]
F03G 5/064
. . . .
{using a bicycle or a bicycle pedal, e.g. pedal generators} [2021-08]
F03G 5/065
. . .
{operated by the hand} [2021-08]
F03G 5/066
. . .
{of the motor-generator type, e.g. the generator is also usable as an electric motor} [2021-08]
F03G 5/08
. .
for combined actuation by different limbs, e.g. hand and leg [2013-01]
F03G 5/086
.
{using flywheels} [2021-08]
WARNING

F03G 5/089
.
{using pendulums} [2021-08]
WARNING

F03G 5/092
.
{using centrifugal or centripetal forces} [2021-08]
WARNING

F03G 5/095
.
{with potential energy storage} [2021-08]
WARNING

F03G 5/098
.
{for pumping} [2021-08]
WARNING

F03G 5/103
.
{using springs} [2021-08]
WARNING

F03G 6/00
Devices for producing mechanical power from solar energy (solar boilers F24) [2021-08]
WARNING

F03G 6/001
.
{having photovoltaic cells} [2013-01]
F03G 6/002
.
{with expansion and contraction elements} [2021-08]
WARNING

F03G 6/003
.
{having a Rankine cycle (F03G 6/065 takes precedence)} [2021-08]
WARNING

F03G 6/004
. .
{of the Organic Rankine Cycle [ORC] type or the Kalina Cycle type} [2021-08]
WARNING

F03G 6/005
. .
{Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger} [2021-08]
F03G 6/0055
.
{having other power cycles, e.g. Stirling or transcritical, supercritical cycles; combined with other power sources, e.g. wind, gas or nuclear} [2021-08]
WARNING

F03G 6/02
.
using a single state working fluid [2013-01]
F03G 6/04
. .
gaseous {(F03G 6/064, F03G 6/068 take precedence)} [2013-01]
F03G 6/045
. . .
{by producing an updraft of heated gas or a downdraft of cooled gas, e.g. air driving an engine} [2021-08]
F03G 6/06
.
with solar energy concentrating means [2021-08]
WARNING

F03G 6/061
. .
{Parabolic linear or trough concentrators} [2024-01]
WARNING

F03G 6/062
. .
{Parabolic point or dish concentrators} [2021-08]
WARNING

F03G 6/063
. .
{Tower concentrators} [2021-08]
WARNING

F03G 6/064
. .
{having a gas turbine cycle, i.e. compressor and gas turbine combination} [2013-01]
F03G 6/065
. .
{having a Rankine cycle} [2021-08]
WARNING

F03G 6/066
. . .
{of the Organic Rankine Cycle [ORC] type or the Kalina Cycle type} [2021-08]
WARNING

F03G 6/067
. . .
{Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger} [2021-08]
F03G 6/068
. .
{having other power cycles, e.g. Stirling or transcritical, supercritical cycles; combined with other power sources, e.g. wind, gas or nuclear} [2021-08]
WARNING

F03G 6/071
.
{with energy storage devices} [2021-08]
WARNING

F03G 6/074
. .
{of the non-thermal type, e.g. springs or batteries} [2021-08]
F03G 6/083
.
{with solar ponds} [2021-08]
WARNING

F03G 6/089
.
{for pumping} [2021-08]
WARNING

F03G 6/092
.
{using heat pumps, e.g. solar assisted heat pumps} [2021-08]
WARNING

F03G 6/098
.
{Components, parts or details} [2021-08]
WARNING

F03G 6/108
. .
{of the heat transfer system} [2021-08]
F03G 6/111
. . .
{Heat transfer fluids} [2021-08]
F03G 6/114
. . . .
{Molten salts} [2021-08]
F03G 6/117
. . . .
{Solid-liquid phase change of the heat transfer fluid} [2021-08]
F03G 6/121
.
{Controlling or monitoring} [2021-08]
WARNING

  • Groups F03G 6/121, F03G 6/124 and F03G 6/127 are incomplete pending reclassification of documents from group F03G 6/00.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03G 6/124
. .
{Start-up control} [2021-08]
F03G 6/127
. .
{Over-night operation} [2021-08]
F03G 6/129
.
{Safety arrangements} [2021-08]
WARNING

F03G 7/00
Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for [2021-08]
WARNING

F03G 7/002
.
{using the energy of vibration of fluid columns} [2021-08]
F03G 7/003
.
{Motors driven by thermophoresis or thermodiffusion} [2021-08]
WARNING

F03G 7/004
.
{Thermo-magnetic motors, e.g. using the Curie effect} [2021-08]
WARNING

F03G 7/005
(Frozen)
.
{Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metal hydride; 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} [2021-08]
WARNING

F03G 2007/007
(Frozen)
.
{using heat pumps} [2021-08]
WARNING

F03G 7/008
.
{characterised by the actuating element (actuating elements for mechanical power producing mechanism using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like F03G 7/061)} [2021-08]
WARNING

F03G 7/009
. .
{Actuators with elements stretchable when contacted with liquid rich in ions, with UV light or with a salt solution} [2021-08]
WARNING

F03G 7/011
. .
{Actuators having a material for absorbing or desorbing a gas, e.g. with a fuel cell reaction or a metal hydride} [2021-08]
WARNING

F03G 7/012
. .
{Electro-chemical actuators} [2021-08]
WARNING

  • Groups F03G 7/012 and F03G 7/0121 are incomplete pending reclassification of documents from groups F03G 7/00 and F03G 7/005.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03G 7/0121
. . .
{Electroactive polymers} [2021-08]
F03G 7/015
. .
{Actuators using the difference in osmotic pressure between fluids} [2021-08]
WARNING

F03G 7/016
. .
{Photosensitive actuators, e.g. using the principle of Crookes radiometer} [2021-08]
WARNING

F03G 7/017
. .
{Actuators comprising biological materials} [2021-08]
WARNING

F03G 7/025
.
{characterised by its use} [2021-08]
WARNING

F03G 7/0252
. .
{Motors; Energy harvesting or waste energy recovery} [2021-08]
F03G 7/0254
. .
{pumping or compressing fluids, e.g. microfluidic devices} [2021-08]
F03G 7/027
.
{Control or monitoring} [2021-08]
WARNING

F03G 7/028
.
{Safety arrangements} [2021-08]
WARNING

F03G 7/029
.
{characterised by the material or the manufacturing process, e.g. the assembly} [2021-08]
WARNING

F03G 7/04
.
using pressure differences or thermal differences occurring in nature (F03G 7/06 takes precedence) [2021-08]
WARNING

F03G 7/045
. .
{Environmental heat plants or OTEC plants using an Organic Rankine Cycle [ORC] or a Kalina Cycle} [2021-08]
WARNING

F03G 7/047
. .
{Environmental heat plants or OTEC plants using heat pumps} [2021-08]
WARNING

F03G 7/05
. .
Ocean thermal energy conversion, i.e. OTEC [2013-01]
F03G 7/06
.
using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like (using thermal expansion of non-vaporising liquids F01K) [2021-08]
F03G 7/061
. .
{characterised by the actuating element} [2021-08]
WARNING

F03G 7/06112
. . .
{using the thermal expansion or contraction of enclosed fluids} [2021-08]
F03G 7/06113
. . . .
{the fluids subjected to phase change} [2021-08]
F03G 7/06114
. . .
{using the thermal expansion or contraction of solid materials} [2021-08]
F03G 7/06115
. . .
{using materials changing their chemical composition} [2021-08]
F03G 7/0612
. . .
{using polymers} [2021-08]
F03G 7/0613
. . .
{using layers of different materials joined together, e.g. bimetals} [2021-08]
F03G 7/0614
. . .
{using shape memory elements} [2021-08]
WARNING

F03G 7/06143
. . . .
{Wires} [2021-08]
F03G 7/06145
. . . .
{Springs} [2021-08]
F03G 7/06146
. . . .
{Torque tubes or torsion bars} [2021-08]
F03G 7/06147
. . . .
{Magnetic shape memory alloys, e.g. ferro-magnetic alloys} [2021-08]
F03G 7/0615
. . . .
{Training, i.e. setting or adjusting the elongation characteristics of the material} [2021-08]
F03G 7/0616
. . .
{characterised by the material or the manufacturing process, e.g. the assembly (magnetic shape memory alloys F03G 7/06147)} [2021-08]
F03G 7/0618
. . . .
{comprising biological materials} [2021-08]
F03G 7/062
. .
{characterised by the activation arrangement} [2021-08]
WARNING

F03G 7/063
. .
{characterised by the mechanic interaction} [2021-08]
WARNING

F03G 7/0631
. . .
{One-way operation, e.g. release mechanism} [2021-08]
F03G 7/06324
. . .
{increasing or decreasing in volume} [2021-08]
F03G 7/0633
. . .
{performing a rotary movement} [2021-08]
F03G 7/0634
. . .
{using cam gearings} [2021-08]
F03G 7/0635
. . .
{with several elements connected in series} [2021-08]
F03G 7/0636
. . .
{with several elements connected in parallel} [2021-08]
F03G 7/064
. .
{characterised by its use} [2021-08]
WARNING

F03G 7/0641
. . .
{Motors; Energy harvesting or waste energy recovery} [2021-08]
F03G 7/0645
. . .
{Clamping, fixing or crimping parts} [2021-08]
F03G 7/0646
. . .
{for pumping or compressing fluids} [2021-08]
F03G 7/065
(Frozen)
. .
{using a shape memory element} [2021-08]
WARNING

F03G 7/066
. .
{Actuator control or monitoring} [2021-08]
WARNING

F03G 7/0665
. . .
{controlled displacement, e.g. by using a lens positioning actuator} [2021-08]
F03G 7/067
. .
{Safety arrangements} [2021-08]
WARNING

F03G 7/08
.
recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine [2021-08]
WARNING

F03G 7/081
. .
{recovering energy from moving road or rail vehicles, e.g. collecting vehicle vibrations in the vehicle tyres or shock absorbers} [2021-08]
WARNING

F03G 7/083
. . .
{using devices on streets or on rails} [2021-08]
F03G 7/085
. . . .
{hydraulic or pneumatic devices} [2021-08]
F03G 7/087
. . . .
{magnetic or electromagnetic devices, e.g. linear electric generators} [2021-08]
F03G 7/092
.
{Motors following new scientific theories not otherwise provide for, e.g. using quantum field effects like zero-point energy, Casimir effect} [2021-08]
WARNING

F03G 7/10
.
Alleged perpetua mobilia (using hydrostatic thrust F03B 17/04) [2021-08]
WARNING

F03G 7/104
. .
{continuously converting gravity into usable power} [2021-08]
WARNING

  • Groups F03G 7/104, F03G 7/107 and F03G 7/111 are incomplete pending reclassification of documents from group F03G 7/10.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03G 7/107
. . .
{using an unbalance for increasing torque or saving energy} [2021-08]
F03G 7/111
. . .
{using magnets, e.g. gravo-magnetic motors} [2021-08]
F03G 7/115
. .
{harvesting energy from inertia forces} [2021-08]
WARNING

F03G 7/119
. .
{amplifying power, torque or energy} [2023-08]
F03G 7/122
. .
{of closed energy loops} [2021-08]
WARNING

F03G 7/125
. .
{creating a thrust by violating the principle of momentum conservation} [2021-08]
WARNING

F03G 7/129
. .
{Thermodynamic processes} [2021-08]
WARNING

F03G 7/135
. .
{following unproven scientific theories; Theories about perpetual motion} [2021-08]
WARNING