Resources Contact Us Home
Electronic timepiece

Image Number 7 for United States Patent #4212158.

An electronic timepiece having an intermittent driving means for rotating the second hand step by step, in which the second hand may be driven in two or more ways, one of by a large step as driving the second hand at the rate of one step per second and the other is by a small step such as driving the second hand at the rate of ten steps per second. There is provided a large step driving pulse producing circuit, a small step driving pulse producing circuit, a transducer for transducing the pulse into the rotating motion, a large step transmitting means, a small step transmitting means, a train for transmitting the rotating motion to the second hand, and means for changing the pulses applied to the transducer and for changing the transmitting means.

  Recently Added Patents
Cooling method and device for cooling a medium-voltage electrical installation in a protective sheath
Method and computer system for automatic vectorization of a vessel tree
Wafer recycling method
Method of operating a split gate flash memory cell with coupling gate
Patterned birefringent product
Dimmer system and damper circuit thereof
Method of forming an isolation structure
  Randomly Featured Patents
Signalling in a telecommunications system
Patella cutting system
Reagents for assay of gamma-glutamyltranspeptidase
System and method for in-line molten metal processing using salt reactant in a deep box degasser
Powder products
Method for preparing 2-(2-pyridinylmethylsulfinyl) benzimidazoles
Razor blade with inclined edge
Poly(hydroxy thioether) vegetable oil derivatives useful as lubricant additives
Symmetrical flow extrusion manifold
Polylactic acid resin, textile products obtained therefrom, and processes for producing textile products