Control system utilizing momentary switching devices
First Claim
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1. A control circuit for a machine and the like having at least one cycle made up of at least one event comprising:
- a plurality of momentarily operable programming means for actuating said cycle and for selectively programming a plurality of time periods of said event, first gate circuit means responsive to a momentary signal provided by said programming means for latching said control circuit in at least one mode of operation, timing mens responsive to said latching of said first gate circuit means for timing said event in accordance with a selectively programmed time period, said timing means including an oscillator circuit means for generating a series of electrical pulses having a frequency variable in accordance with said selectively programmed time periods and a counter for counting a fixed number of said electrical pulses generated by said oscillator circuit means, and function control means responsive to an electrical signal provided by said timing means when said fixed number of said electrical pulses have been counted for latching said control circuit in at least another mode of operation.
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Abstract
A control system, for a machine and the like having at least one cycle made up of at least two events, utilizes momentary switching devices to actuate each cycle. The control system includes a control circuit having momentary switching devices, digital circuitry for latching the control circuit in various modes of operation, and timing circuitry responsive to the digital circuitry for timing at least one event of the cycle; and gate circuit means controlled by semiconductor switching devices for regulating at least another event of the cycle in response to the control circuit.
15 Citations
41 Claims
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1. A control circuit for a machine and the like having at least one cycle made up of at least one event comprising:
- a plurality of momentarily operable programming means for actuating said cycle and for selectively programming a plurality of time periods of said event, first gate circuit means responsive to a momentary signal provided by said programming means for latching said control circuit in at least one mode of operation, timing mens responsive to said latching of said first gate circuit means for timing said event in accordance with a selectively programmed time period, said timing means including an oscillator circuit means for generating a series of electrical pulses having a frequency variable in accordance with said selectively programmed time periods and a counter for counting a fixed number of said electrical pulses generated by said oscillator circuit means, and function control means responsive to an electrical signal provided by said timing means when said fixed number of said electrical pulses have been counted for latching said control circuit in at least another mode of operation.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. In a control circuit for controlling a machine and the like having at least one cycle made up of at least one event, a timing means for timing said event comprising:
- oscillator circuit means responsive to an electrical signal for deriving a plurality of time periods for said event;
said oscillator circuit means including switching means for activating said oscillator circuit means, a clock responsive to said switching means for generating a series of electrical pulses, and impedance means for defining a plurality of selectable frequencies of said electrical pulses, said frequencies variable in accordance with selected time periods for said event; and
a counter for counting a fixed number of said electrical pulses generated by said oscillator circuit means;
said plurality of time periods substantially equivalent to various times required for said counter to count said fixed number of said electrical pulses. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- oscillator circuit means responsive to an electrical signal for deriving a plurality of time periods for said event;
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28. A control system for controlling a machine and the like having at least one cycle made up of at least two events comprising in combination:
- a power supply source;
a control circuit responsive to said power supply source including momentarily operable programming means for actuating said cycle and for selectively programming a plurality of time periods of a first event, first gate circuit means responsive to a momentary signal provided by said programming means for latching said control circuit in a first mode of operation wherein said first event is activated, timing means responsive to said latching of said first gate circuit means for timing said first event of said machine in accordance with a selectively programmed time period, and function control means responsive to an electrical signal provided by said timing means after said selectively programmed time period has elapsed, said function control means including second gate circuit means for latching said control circuit in a second mode of operation wherein said first event is deactivated and a second event is activated, and third gate circuit means responsive to said latching of said function control means for regulating said second event of said machine. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
- a power supply source;
Specification