Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – In vehicle wiring
Patent
1997-02-11
2000-03-28
Ballato, Josie
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
In vehicle wiring
324503, 324539, 73129, 340431, G01L 528
Patent
active
060436611
ABSTRACT:
A portable diagnostic device for checking electrical signalling systems of school buses and/or tractor trailers. The device has several receptacles for connection to a corresponding receptacle or pin connector of a school bus and most types of trailers. One electrical circuit includes switches for energizing individual signalling or illumination circuits of the trailer individually, and indicating lamps for annunciating circuit operability. Another electrical circuit includes switches for energizing individual signalling or illumination circuits of the school bus individually, and indicating lamps for annunciating circuit operability. The device, which is contained on a wheeled cart, has its own power supply and circuit overcurrent protective devices, and is thus independent of a school bus and a tractor, both of which normally generate the signals. The device enables a shop to perform a safety check for many varieties of school buses and trailers.
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patent: 5602482 (1997-02-01), Gutierrez
Ballato Josie
Litman Richard C.
Solis Jose M.
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