|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

ENGINES AND PUMPS

|  | F03 |
MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids Fulltext... Hierarchy... Expanded...F01; positive-displacement machines for liquids Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...A63H; springs in general Fulltext... Hierarchy... Expanded...F16F; precision time mechanisms, e.g. for clocks or watches, Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F24)

|  | F03G 7/04 |
· | using pressure differences or thermal differences occurring in nature (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F03B 17/04)