G04C

Technology

Watch

Stats

Description

ELECTROMECHANICAL CLOCKS OR WATCHES (mechanical parts of clocks or watches in general G04B; electronic time-pieces with no moving parts, electronic circuitry for producing timing pulses G04G)

Subclasses

SubclassTitle
1/00 Winding mechanical clocks electrically (winding mechanically G04B 3/00)
1/02 Winding mechanical clocks electrically (winding mechanically G04B 3/00) by electromagnets
1/04 Winding mechanical clocks electrically (winding mechanically G04B 3/00) by electric motors with rotating or with reciprocating movement
1/06 Winding mechanical clocks electrically (winding mechanically G04B 3/00) by electric motors with rotating or with reciprocating movement winding-up springs
1/08 Winding mechanical clocks electrically (winding mechanically G04B 3/00) by electric motors with rotating or with reciprocating movement raising weights
1/10 Winding mechanical clocks electrically (winding mechanically G04B 3/00) Protection against overwinding (in mechanical clocks or watches G04B 1/2, G04B 3/06, G04B 3/1)
1/12 Winding mechanical clocks electrically (winding mechanically G04B 3/00) Protection against overwinding (in mechanical clocks or watches G04B 1/2, G04B 3/06, G04B 3/1) of the spring
1/14 Winding mechanical clocks electrically (winding mechanically G04B 3/00) Protection against overwinding (in mechanical clocks or watches G04B 1/2, G04B 3/06, G04B 3/1) of the weights
3/00 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00)
3/02 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a pendulum
3/027 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a pendulum using electromagnetic coupling between electric power source and pendulum (G04C 3/033 takes precedence)
3/033 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a pendulum using torsion pendulums; using conical pendulums (construction thereof G04B 17/00)
3/04 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a balance
3/06 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
3/08 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork
3/10 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork driven by electromagnetic means
3/12 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork driven by piezo-electric means; driven by magneto-strictive means
3/14 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) incorporating a stepping motor (G04C 3/02-G04C 3/12 take precedence)
3/16 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) incorporating an electro-dynamic continuously rotating motor (G04C 3/02-G04C 3/12 take precedence)
3/18 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) incorporating electro-thermal or electro-pneumatic driving means

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