Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1978-06-06
1980-09-23
Hix, L. T.
Electrical transmission or interconnection systems
Switching systems
Switch actuation
68 12R, 13762411, 134113, H01H 100
Patent
active
042245303
ABSTRACT:
An electronic sequence type controller for appliances or the like which provides numerical indications of how much time will be required to execute a program cycle which a user has selected, and how much time is remaining as an operating cycle proceeds. Additionally, means are provided for a service technician to rapidly set the controller to a particular program step for diagnostic purposes. More specifically, after user cycle options have been inputted, control logic initially enables a counting and display means to count up and rapidly executes the entire selected program a first time, the rapid first execution appearing essentially instantaneous to the user. This presets the counting and display means with a representation of the total number of program advancing operations required to execute the selected program. Next, the control logic means enables the counting and display means to count down, and executes the selected program a second time with relatively longer intervals between successive program advancing operations. The counting and display means then provides a continuous representation of the remaining time to go during the second execution. For diagnostic purposes, the control logic has a diagnostic mode wherein the program is advanced incrementally a step at a time in response to manual actuation of a switch.
REFERENCES:
patent: 3646371 (1972-02-01), Flad
patent: 3662186 (1972-04-01), Karklys
patent: 3727434 (1973-04-01), Bochan
patent: 3939361 (1976-02-01), Aidala et al.
patent: 4011428 (1977-03-01), Fosnough et al.
patent: 4035661 (1977-07-01), Carlson
patent: 4104542 (1978-08-01), Karklys et al.
patent: 4114190 (1978-10-01), Mazuir
"TMS 1117 4-Bit Microcomputer Preprogrammed Microwave Oven Controller Manual," Texas Instrument, 1976, All Pages Pertinent.
Helfrich Robert C.
Simcoe Robert J.
Dwyer James L.
General Electric Company
Hix L. T,.
Reams Radford M.
Yungman Bruce A.
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