Thermal sensor and current generator

Details Thermal sensor and current generator Thermal sensor and current generator

1975-10-14

1977-06-14

Queisser, Richard C.

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

1161145, 310 87, 429 52, H01M 1600, G01K 1106

Patent

active

040298590

ABSTRACT:
In a system to prevent train derailment due to axle failure resulting from ournal bearing overheating, a thermal sensor continuously monitors the temperature of the bearing and activates the brake system when the temperature exceeds a predetermined level. A thermally-responsive element located in the journal bearing housing physically deforms to activate a power source. The resulting signal initiates an electro-explosive brake line venting mechanism, which punctures and vents brake line to stop the train. Several configurations of the thermal sensor and the power source are possible.

REFERENCES:
patent: 1271806 (1918-07-01), Tibbs
patent: 1512456 (1924-10-01), Carman
patent: 2816196 (1957-12-01), Dandelin
patent: 2827851 (1958-03-01), Ferrara
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patent: 3463670 (1969-08-01), Rao et al.
patent: 3679487 (1972-07-01), Coyle
patent: 3777696 (1973-12-01), Bilbrey et al.
patent: 3803374 (1974-04-01), Delgendre et al.
patent: 3885989 (1975-05-01), Bush
patent: 3930629 (1976-01-01), Armstrong et al.

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