Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1974-10-10
1977-03-01
Weldon, Ulysses
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
58 28R, 318126, 331117R, 58 23AC, G04B 1934
Patent
active
040095657
ABSTRACT:
A time measuring device and an oscillator assembly for generating a periodic signal having a predetermined frequency output is disclosed. The time measuring device may be in the form of a watch, clock or other form of timekeeping device. The oscillator assembly formed by at least one transistor in resonant circuit make-up is energized by a continuous current source.
REFERENCES:
patent: 2919416 (1959-12-01), Jones
patent: 2957145 (1960-10-01), Bernstein
patent: 3443242 (1969-05-01), Reich
patent: 3509714 (1970-05-01), Walton
patent: 3528238 (1970-09-01), Stampfli
patent: 3818484 (1974-06-01), Nakamura et al.
BISOCA Societe de Recherches
Weldon Ulysses
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