Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-10-29
1983-11-22
Brigance, Gerald L.
Communications: electrical
Continuously variable indicating
With meter reading
340365E, 328 75, H04Q 302
Patent
active
044172478
ABSTRACT:
Circuitry controlled by a series of switch actuations per a preselected switch code provides a control signal. A plurality of flip-flop circuits are connected for series operation. A plurality of switches in excess of the number of digits in the code are available to provide an actuating signal for a flip-flop circuit. A time delay provided between successive flip-flop circuits enables a given switch to be used more than once for a switch code. Automatic resetting of the last flip-flop circuit at which the control signal is provided allows the control signal to be repeated one or more times before all of the flip-flop circuits are reset. A time delay circuit at the first flip-flop circuit provides for automatic reset of the circuitry. Each switch not connected to a flip-flop circuit as a digit of the switch code will, when actuated, reset the circuitry.
REFERENCES:
patent: 3634769 (1972-01-01), Sleater et al.
patent: 3754164 (1973-08-01), Zorzy
patent: 3766522 (1973-10-01), Marsh
patent: 3805246 (1974-04-01), Colucci et al.
patent: 3831065 (1974-08-01), Martin et al.
patent: 4083424 (1978-04-01), von den Stemmen et al.
Brigance Gerald L.
Marben Robert L.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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