Steam trap monitor

Details Steam trap monitor Steam trap monitor

1979-06-25

1981-02-10

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Thermostatic

With indicator or alarm

73 17A, 137551, G05D 2300

Patent

active

042496977

ABSTRACT:
A temperature differential monitoring device on a steam trap receives signals from a battery powered pulse generator and includes first and second thermistors disposed, respectively, in heat transfer relation with the steam trap and with a condensate conduit connected to the trap. A differential comparator circuit responsive to the outputs of the thermistors activates a first light emitting diode when the temperature differential between the trap and the conduit equals and exceeds a predetermined value and deactivates the first light emitting diode and activates a second light emitting diode when the temperature differential is less than the predetermined value.

REFERENCES:
patent: 1772279 (1930-08-01), Fonseca
patent: 3718924 (1973-02-01), Trubert et al.
patent: 3926368 (1975-12-01), Geen

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