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Control system utilizing momentary switching devices

  • US 4,137,463 A
  • Filed: 06/16/1977
  • Issued: 01/30/1979
  • Est. Priority Date: 06/16/1977
  • Status: Expired due to Term
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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