Automatic recycle circuit

Details Automatic recycle circuit Automatic recycle circuit

1977-01-27

1978-04-11

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Automatic reclosing

361 59, 361110, H02H 720

Patent

active

040842045

ABSTRACT:
An automatic recycle circuit is disclosed for use in a process or apparatus of the type wherein process or equipment conditions are monitored to detect an abnormal condition. The automatic recycle circuit accepts inputs from monitor circuits which are intended to cause recycle operation and monitor circuits which are intended to cause complete shutdown and reacts appropriately to each type of input. With respect to those inputs from monitor circuits which are intended to cause recycle action, the automatic recycle circuit is capable of permanently shutting down the process or apparatus if the detected abnormal condition has a duration exceeding a first predetermined time or abnormal conditions are detected a predetermined number of times within a second predetermined time period.

REFERENCES:
patent: 3317791 (1967-05-01), Price et al.
patent: 3560798 (1971-02-01), Tenebaum et al.
patent: 3609456 (1971-09-01), Kayaguchi et al.
patent: 3878436 (1975-04-01), Bogel
patent: 3944889 (1976-03-01), Conway

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