Registers – Transfer mechanism – Traveling pawl
Patent
1975-11-12
1977-08-09
Wise, Edward J.
Registers
Transfer mechanism
Traveling pawl
235 92WT, 177 1, G01G 900
Patent
active
040412890
ABSTRACT:
There is disclosed an electronic scale which may, for example, be used as a bathroom scale, medical room scale, or otherwise. The scale provides a digital display of the weight of an object placed or positioned on a weighing platform and can provide said display in terms of the conventional system or the metric system by varying the time base or gate as applied to a counter. The counter has another input which provides a frequency related to the object's weight; which frequency is counted in accordance with the duration of the time gate, to enable a digital display of the weight.
Apparatus is shown for providing a time base for the scale and employs two voltage to frequency converters, one to provide a frequency related to the weight of an object and the other to provide a time base; both of which vary according to supply fluctuations. The circuitry provides a number of pulses to the counter indicative of the true weight and independent of the supply voltage.
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patent: 3861479 (1975-01-01), Pryor
patent: 3906208 (1975-09-01), Rogers
Brosh Amnon
Geiger Dana F.
Kulite Semiconductor Products Inc.
Plevy Arthur L.
Wise Edward J.
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