F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES AND PUMPS
 F03
MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids F01; positive-displacement machines for liquids F04); WIND, SPRING, WEIGHT, OR MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
 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
 F03G

Note(s)

In this sub-class, the term "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)
 F03G 1/02
·  characterised by shape or material of spring, e.g. helical, spiral, coil
 F03G 1/04
·  ·  using rubber springs
 F03G 1/06
·  Other parts or details
 F03G 1/08
·  ·  for winding
 F03G 1/10
·  ·  for producing output movement other than rotary, e.g. vibratory
 F03G 3/00
Other motors, e.g. gravity or inertia motors
 F03G 3/02
·  using wheels with circumferentially-arranged compartments co-operating with solid falling bodies (F03G 3/04 takes precedence)
 F03G 3/04
·  driven by sand or like fluent solid material
 F03G 3/06
·  using pendulums
 F03G 3/08
·  using flywheels
 F03G 5/00
Devices for producing mechanical power from muscle energy (driving cycles B62M)
 F03G 5/02
·  of endless-walk type, e.g. treadmills
 F03G 5/04
·  ·  Horsemills or the like
 F03G 5/06
·  other than of endless-walk type
 F03G 5/08
·  ·  for combined actuation by different limbs, e.g. hand and leg
 F03G 7/00
Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
 F03G 7/02
·  using solar energy (solar boilers F24)
 F03G 7/04
·  using pressure differences or thermal differences occurring in nature (F03G 7/06 takes precedence)
 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)
 F03G 7/08
·  recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
 F03G 7/10
·  Alleged perpetua mobilia (using hydrostatic thrust F03B 17/04)