Lubricant pressure responsive control circuit

Electricity: motive power systems – Automatic and/or with time-delay means – Pressure in a fluid or granular material

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Details

318484, 317 14G, 307118, 62158, F25B 4302, G05B 1300

Patent

active

040004503

ABSTRACT:
A control circuit for a motor has an electronic RC timing circuit with a fluid pressure switch for shunting the timing circuit if the fluid pressure reaches and maintains a predetermined magnitude. The timing circuit terminates the energization of the motor when not shunted for a predetermined duration.

REFERENCES:
patent: 3673811 (1972-07-01), Adams et al.
patent: 3716756 (1973-02-01), Runge
patent: 3796061 (1974-03-01), Weihl
patent: 3801889 (1974-04-01), Quinn

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