Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1976-07-01
1978-07-11
Hohauser, Herman J.
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
346136, H02P 300
Patent
active
041004701
ABSTRACT:
A precision drive system for a chart recorder adapted to record time histories of one or more sensed parameters on a single chart including one power source, one or more sensing means adapted for electrical connection to said power source, a drive motor having a rotatable output shaft and adapted for electrical connection to the power source, a pulse generator operative in response to the power source to provide a pulse at selectable regular time intervals, a motor and sensor starting means operative in response to a pulse from the pulse generator for starting the motor and the sensing means at the regular time intervals, and a self interrupting means for the motor and the sensing means to turn the motor and the sensing means off after a reading has been recorded on said chart recorder, to provide a chart recorder which can operate in a remote location for long periods of time and give a precise time record independent of the power source voltage, with a low power consumption.
REFERENCES:
patent: 2190699 (1940-02-01), Cole
patent: 3148321 (1964-09-01), Holzer
patent: 3641412 (1972-02-01), Hayashi
patent: 3668496 (1972-06-01), Markowitz et al.
patent: 3881144 (1975-04-01), Kikuchi
Analytical Measurements, Inc.
Hohauser Herman J.
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