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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 )
Definition statement
This subclass/group covers:

Spring, gravity, inertia or like motors. Devices or mechanisms for producing power, e.g. mechanical or electric power, from muscle energy, or solar energy, or not otherwise provided for, or using energy sources not otherwise provided for.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Arrangements in connection with power supply in vehicles from force of nature
Electric propulsion with power supply in vehicles from force of nature
Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
Motor
mechanism for producing mechanical power from potential energy of solid bodies
Spring-motor (spring-driven toys A63H; springs in general F16F; precision time mechanisms, e.g. for clocks or watches, G04B)
Definition statement
This subclass/group covers:

Mechanisms for producing mechanical power from the energy stored in a spring or spring-like member

Informative references
Attention is drawn to the following places, which may be of interest for search:
Spring-driven toys
Springs in general
Precision time mechanisms, e.g. for clocks or watches
Other motors, e.g. gravity or inertia motors [N: driven by falling liquid F03B]
Definition statement
This subclass/group covers:

Motors driven by gravity or inertia force, e.g. driven by solid falling bodies like bowls, or by solid falling materials like sand, or by out of balance bodies like pendulums, or by the change of the orientation of the rotation axis of a rotating body

Informative references
Attention is drawn to the following places, which may be of interest for search:
Motors driven by falling liquid or by waves, e.g. hydraulic turbines, or wave power plants, or tidal power plants
Devices for producing mechanical power from muscle energy (driving cycles B62M)
Definition statement
This subclass/group covers:

Devices for producing mechanical power from human or animal muscle energy and being of the endless-walk type, e.g. treadmills, or other than of the endless-walk type, e.g. pedal generators

Informative references
Attention is drawn to the following places, which may be of interest for search:
Driving cycles
Charging batteries with a non-electric prime mover
Electric generator with motor driven by animals or vehicles
Devices for producing mechanical power from solar energy (solar boilers F24)
Definition statement
This subclass/group covers:

Devices for producing mechanical power from solar energy, e.g. with photovoltaic cells, or solar collectors with or without concentration of solar rays, the devices using a single-state working fluid, e.g. Stirling cycle, or involving a phase change of the working fluid (Rankine cycle), e.g. a steam-water cycle

Informative references
Attention is drawn to the following places, which may be of interest for search:
Gas-turbine plants with the working fluid being heated indirectly, e.g. by solar energy
Stirling cycle type engines
Up-wind power plants
Solar heat collectors
Machines using solar energy
Energy generation through solar thermal energy
Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for [N: (micro-structural devices or systems, e.g. micro-mechanical devices B81B)]
Definition statement
This subclass/group covers:

Devices or mechanisms for producing mechanical power from vibrational energy, e.g. of a fluid or a machine, or from an electro-chemical process, or by using pressure differences or thermal differences occurring in nature, or from expansion or contraction of bodies.

References relevant to classification in this subclass
This subclass/group does not cover:
Flexible endoscopes using shape memory elements
Electrothermal relays making use of shape memory materials
Informative references
Attention is drawn to the following places, which may be of interest for search:
Micro-structural devices or systems, e.g. micro-mechanical devices
Perpetuum mobile cycles
Alledged perpetuum mobilia using liquids
F03B 17/04, F03B17/04B
Solar or artificial heating for draft enhancement of chimneys
Pumping of fluid by direct contact of another fluid or by using inertia of the fluid to be pumped
Temperature sensing elements
Actuators expanding and contracting in response to changes of temperature
Thermo-electric devices operating with Peltier or Seebeck effect
Alleged dynamo-electric perpetuum mobilia
Electric generator with mechanical motor driven by intermittent forces, e.g. by the wheel of a passing vehicle
Motors not provided for elsewhere
Motors driven by springs, weights or manual power
Definition statement
This subclass/group covers:

Motors driven by springs, weights or manual power

Special rules of classification within this group

Indexing Codes F03G 2730/01 to F03G 2730/03 are used for additional classification of documents in group F03G 1/00

Indexing Codes F03G 2730/05 to F03G 2730/07 are used for additional classification of documents in group F03G 5/00

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Last Modified: 10/11/2013