LOCAL DERAILMENT SENSOR AND BRAKE ACTUATOR SYSTEM
The patent application describes a motion sensor combined with a journal bearing thermal detector which produces an output signal utilized to activate a train's brake system upon detection of a local wheel derailment or excessive bearing temperatures. Wheel impact with the roadbed and/or bearing temperatures exceeding a predetermined value causes the sensor to activate a percussion-initiated power source. The output signal triggers an electroexplosive brake venting mechanism, puncturing and venting the brake line for a full service brake application to stop the train.
- Government-owned invention available for licensing. Copy of application available NTIS.
Department of the NavyConstitution Avenue and 18th Street, NW
Washington, DC USA
- Armstrong, J H
- Wassman, W W
- Publication Date: 1974-8-7
- Pagination: 19 p.
- TRT Terms: Activation (Chemistry); Actuators; Braking; Derailments; Detectors; Hot box detectors; Journal bearings; Journal boxes; Motion; Patents; Railroad cars; Safety; Sensors; Temperature measuring instruments; Vehicle design; Warning systems; Wheels
- Old TRIS Terms: Activation; Car design; Temperature warning systems
- Subject Areas: Design; Railroads; Safety and Human Factors; Vehicles and Equipment;
- Accession Number: 00093771
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: PAT-APPL-495-480 Patent
- Files: TRIS
- Created Date: Feb 4 1976 12:00AM