Railroad hot box detector

Details Railroad hot box detector Railroad hot box detector

1984-05-14

1987-04-21

Reese, Randolph A.

Railway switches and signals

Cab signal or train control

Train defect

246169D, 246DIG2, 340 57, 340584, 340682, B61K 904

Patent

active

046590439

ABSTRACT:
A hot box detector system is provided wherein heat signals from bearings within a housing are analyzed to determine if the scanned surface of the housing is an inner sidewall surface or an outer sidewall surface. The signals are normalized to account for differences in the heat dissipating characteristics of the inner and outer sidewalls and air stream cooling resulting from the trains movement.

REFERENCES:
patent: 2880309 (1959-03-01), Gallagher et al.
patent: 2963575 (1960-12-01), Pelino et al.
patent: 3629572 (1971-12-01), Gallagher
patent: 3697744 (1972-10-01), Howell
patent: 3731087 (1973-05-01), King
patent: 3812343 (1974-05-01), Gallagher et al.
patent: 4256278 (1981-03-01), Sanville
patent: 4313583 (1982-02-01), Bambara et al.
patent: 4323211 (1982-04-01), Bambara et al.

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