Patents Assigned to Fabrik fur Technische Laufwerke und Apparate Kundo Kieninger & Obergfell
  • Patent number: 4357692
    Abstract: An electronic clock emitting half-hourly time signals corresponding to sh' bells comprises an electromagnetic striker driven by a crystal-controlled oscillator via a multistage binary frequency divider whose last several stages, with the exception of the penultimate stage, have outputs interconnected by a logical coincidence gate to generate a succession of output pulses occurring in pairs during the first half of every cycle of a square wave emitted by the final stage. This square wave steps a motor which drives an associated clockwork entraining a multibank rotary switch and alternately closing, for short periods on the full hour and on the half hour, respective contacts which transmit the square wave to a control circuit including an electronic pulse counter.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: November 2, 1982
    Assignee: Fabrik fur Technische Laufwerke und Apparate Kundo Kieninger & Obergfell
    Inventors: Rudolf Broghammer, Franz Kaser