Temperature and failure indicating probe for a bearing

Details Temperature and failure indicating probe for a bearing Temperature and failure indicating probe for a bearing

1976-10-12

1978-02-21

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73351, 200 614, 340269, G01K 108, H01H 316

Patent

active

040745759

ABSTRACT:
The disclosed invention relates to a combination temperature and failure indicating probe for use in a bearing. In the preferred embodiment, a negative coefficient thermistor is disposed within a tubular, electrically conductive, enclosure. The enclosure is surrounded by an electrically insulating sleeve for mounting within a bearing. Electrical conductors connected to the thermistor and to the enclosure itself lead to a resistance sensor which detects an abnormal resistance due to either:
1. an excess temperature at the bearing; or
2. contact by a metallic portion of the bearing with the enclosure due to bearing wear or failure.

REFERENCES:
patent: 2742756 (1956-04-01), De Boisblanc
patent: 3183043 (1965-05-01), Creeger et al.
patent: 3508241 (1970-04-01), Potter
patent: 3580078 (1971-05-01), MacKenzie
patent: 3657640 (1972-04-01), Jelinek et al.

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