Method of controlling production processes and apparatus therefo

Details Method of controlling production processes and apparatus therefo Method of controlling production processes and apparatus therefo

1979-10-11

1982-05-18

Ruggiero, Joseph F.

Boots, shoes, and leggings

73118, 318561, 364160, 364164, 364176, G05B 1136, G05B 1302, G01M 1900

Patent

active

043308287

ABSTRACT:
A method and apparatus for controlling production processes utilizing a three-state, four-mode process controller which operates on the basis of counteracting any process change by utilizing the difference between a feedback signal related to a current condition of the process and a desired value related to the desired condition of the process, and a signal related to the rate of change between said feedback signal and said desired value signal, to produce a correction signal which is utilized to operate said three-state, four-mode process controller in its three states depending on certain relationships between the value of the desired value and feedback signals, as well as the summation of those values.

REFERENCES:
patent: 3524344 (1970-08-01), Converse et al.
patent: 3851523 (1974-12-01), Converse et al.
patent: 3925640 (1975-12-01), Duggan
patent: 3975953 (1976-08-01), Smith et al.
patent: 4030351 (1977-06-01), Smith
patent: 4151588 (1979-04-01), Hammer

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