Weighing scales – Preset – Responsive to load receiver
Patent
1976-12-06
1978-06-06
Miller, Jr., George H.
Weighing scales
Preset
Responsive to load receiver
177 25, G01G 1314, G01G 2322
Patent
active
040930327
ABSTRACT:
An electronic weighing apparatus, comprising: a scale mechanism having a weighing plate for placing an article being weighed, said article having a net weight and including a packing having a tare weight, a pulse train generator operatively coupled to said weighing plate for generating a pulse train the number of which is associated with the weight of said article, a counter for counting the number of pulses of said pulse train for providing a weight value signal, a shift register responsive to said counter for storing the weight value signal in said counter, a tare weight display for displaying the weight value stored in said shift register, a net weight display responsive to said counter for displaying the weight value in said counter, a key board for setting the unit price of said thing, an operation circuit responsive to said key board and counter for making a multiplying operation of said unit price by said weight value in said counter for evaluating the price of said thing, a price display for displaying the price of said thing evaluated by said operation circuit, a tare weight deduction instructing switch to be depressed when only said tare is placed on said weighing plate for providing a reset signal for resetting said counter, said article being further placed on said weighing plate after said tare weight deduction instructing switch is depressed, and a gating circuit responsive to said tare weight deduction instructing switch for selectively introducing the weight value in said counter into said shift register before said tare weight deduction instructing switch is depressed and for selectively introducing the weight value in said counter into said article weight display and operation circuit after said tare weight deduction instructing switch is depressed, whereby the price to be obtained in conjunction with the weight of the tare is prevented from being displayed in initially setting the weight of the tare of an article in the apparatus.
REFERENCES:
patent: 3727706 (1973-04-01), Streater et al.
patent: 3786881 (1974-01-01), Allan et al.
patent: 3851720 (1974-12-01), Williams, Jr.
patent: 3869005 (1975-03-01), Williams, Jr. et al.
patent: 4029162 (1977-06-01), Krolick et al.
Hara Katsuaki
Uyama Noboru
Fasse W. G.
Kubota Ltd.
Miller Jr. George H.
Roberts W. W.
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