IPC-Stelle: G04F 7/04 [Version 2017.01]

SymbolTypTitel
GSKPHYSICS
G04KLHOROLOGY
G04FUKLTIME-INTERVAL MEASURING (measuring pulse characteristics G01R, e.g. G01R 29/02; in radar or like systems G01S; masers H01S 1/00; generation of oscillations H03B; generation or counting of pulses, frequency dividing H03K; analogue/digital conversion in general H03M 1/00) [2]
G04F 1/00HGRApparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timer (time or time-programme switches which automatically terminate their operation after the programme is completed H01H 43/00) [1, 2006.01]
G04F 1/02UGR1
.by consuming prefixed quantities of materials, e.g. by burning candle [1, 2006.01]
G04F 1/04UGR1
.by movement or acceleration due to gravity [1, 2006.01]
G04F 1/06UGR2
. .by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock [1, 2006.01]
G04F 1/08UGR2
. .by a body falling a prefixed distance in air or in a viscous material [1, 2006.01]
G04F 3/00HGRApparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeter with clockwork (time or time-programme switches which automatically terminate their operation after the programme is completed H01H 43/00) [1, 2006.01]
G04F 3/02UGR1
.with mechanical driving mechanisms [1, 2006.01]
G04F 3/04UGR2
. .Additional arrangements in connection with ordinary non-electric clocks for this purpose [1, 2006.01]
G04F 3/06UGR1
.with electric driving mechanisms [1, 2006.01]
G04F 3/08UGR2
. .Additional arrangements in connection with ordinary electric clocks for this purpose [1, 2006.01]
G04F 5/00HGRApparatus for producing preselected time intervals for use as timing standards (generating clock signals for electric digital computers G06F 1/04; automatic frequency control or stabilisation of generators in general H03L) [1, 2006.01]
G04F 5/02UGR1
.Metronomes [1, 2006.01]
G04F 5/04UGR1
.using oscillators with electromechanical resonators [2, 2006.01]
G04F 5/06UGR2
. .using piezo-electric resonators [2, 2006.01]
G04F 5/08UGR2
. .using magnetostrictive resonators [2, 2006.01]
G04F 5/10UGR1
.using electric or electronic resonators (G04F 5/14 takes precedence) [2, 2006.01]
G04F 5/12UGR1
.using fluidic devices [2, 2006.01]
G04F 5/14UGR1
.using atomic clocks [2, 2006.01]
G04F 5/16UGR1
.using pulses produced by radio-isotopes [2, 2006.01]
G04F 7/00HGRApparatus for measuring unknown time intervals by non-electric means (G04F 13/06 takes precedence) [1, 2, 2006.01]
G04F 7/02UGR1
.by measuring the distance of fall or the final velocity of a falling body [1, 2006.01]
G04F 7/04UGR1
.using a mechanical oscillator [1, 2, 2006.01]
G04F 7/06UGR2
. .running only during the time interval to be measured, e.g. stop-watch [1, 2006.01]
G04F 7/08UGR2
. .Watches or clocks with stop devices, e.g. chronograph [1, 2006.01]
G04F 7/10UGR1
.Means used apart from the time-piece for starting or stopping same [1, 2, 2006.01]
G04F 8/00HGRApparatus for measuring unknown time intervals by electromechanical means [2, 2006.01]
G04F 8/02UGR1
.using an electromechanical oscillator [2, 2006.01]
G04F 8/04UGR2
. .using a piezo-electric oscillator [2, 2006.01]
G04F 8/06UGR2
. .using a magnetostrictive oscillator [2, 2006.01]
G04F 8/08UGR1
.Means used apart from the time-piece for starting or stopping same [2, 2006.01]
G04F 10/00HGRApparatus for measuring unknown time intervals by electric means [2, 2006.01]
G04F 10/02UGR1
.using oscillators with passive electric resonator, e.g. lumped LC [2, 2006.01]
G04F 10/04UGR1
.by counting pulses or half-cycles of an ac [2, 2006.01]
G04F 10/06UGR1
.by measuring phase [2, 2006.01]
G04F 10/08UGR1
.using pulses produced by radio-isotopes [2, 2006.01]
G04F 10/10UGR1
.by measuring electric or magnetic quantities changing in proportion to time [2, 2006.01]
G04F 13/00HGRApparatus for measuring unknown time intervals by means not provided for in groups G04F 5/00-G04F 10/00 [2, 2006.01]
G04F 13/02UGR1
.using optical means [2, 2006.01]
G04F 13/04UGR1
.using electrochemical means [2, 2006.01]
G04F 13/06UGR1
.using fluidic means [2, 2006.01]