Trailer Light Testing Tool is Now Available For Sale or Licensing: This Patent Pending Invention is Brought to You By ilauncher.com Along with its Invention Partner

    MARLTON, NJ, January 18, 2011 /24-7PressRelease/ -- The present invention relates generally to a portable apparatus for testing electrical circuits and, more specifically, relates to apparatus for testing the continuity of circuits and operation of the incandescent and LED bulbs and turn signals on trailers used for long distance hauling in the tractor trailer industry.

Details:
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Annual or periodic testing of the various lighting circuits on a trailer toinsure that they are operating properly is mandatory in many states and localities. Normally the testing of the lighting circuits is done by a truck mechanic while performing regular periodic maintenance on the tractor and trailer such as inspecting the brakes, tires, oil level, etc. Typically, while in the cab of the tractor, the mechanic will turn on the turn signals, marker lights, step on the break to check the brake lights, etc. and, after each operation, walk around the trailer to see if all the lights are working. Clearly, a time consuming process which can be done much faster if a second mechanic is available to help with the testing procedure.

Referring to FIG. 1, there is disclosed a perspective view of a truck trailer light tester rigidly and securely attached to a seven pin male connector. When the seven pin male connector on the light tester is connected to the seven pin female connector that is rigidly attached to the front of the body of a truck trailer, the light tester is rigidly attached to and is supported by the body of the truck trailer. The light tester projects out from the front end of the truck trailer body without requiring any additional support.

The detailed description of the preferred embodiment of the invention relates to the testing of lighting circuits and bulbs on trailers which are hauled to distant locations over the interstate highway system by tractors. It is understood, however, that this invention is not limited to testing lighting circuits and bulbs on highway trailers, but may be used, for example, to test the lighting circuits of fleet equipment, farm implements, car trailers, etc. by simply adding an external socket which is attached to the body of the piece of equipment which is connected to the lighting circuits of the vehicle that is to be tested.

Looking at FIG. 1, a trailer light testing apparatus 10 which contains its own source of twelve volt DC power or may be connected to a source of power such as a twelve volt rechargeable battery, is electrically connected through a seven prong male connector 14 (See FIG. 2) securely and rigidly attached to the light tester 10 to the lighting circuits on a trailer 16 through a seven prong female connector securely and rigidly connected to the body of a trailer. While the number of prongs that are present in the connector is optional, the connector used with this invention has seven prongs because that is the standard connector that is currently being used on all trailers for providing power between the tractor and each of the lighting circuits on the trailer.

Referring to FIG. 2, there is shown a perspective view of the front panel of the trailer light tester apparatus where a seven pin male connector 14 is rigidly and securely attached to a side panel of the trailer light tester apparatus 10. Power is supplied to the trailer light tester apparatus from a battery which is located within the trailer light tester or may be external to and electrically connected to the trailer light tester 10 which is then selectively fed to the various lighting circuits in the trailer 16 through the female and male sections of the seven prong connector which are securely and rigidly connected to the trailer light tester and the body of the trailer.

The front panel 20 of the trailer light tester has five single pole single throw switches 22, 24, 26, 28, and 30 the functions of which are more fully identified as follows. Switch 22, left turn indicator lights; switch 24, auxiliary lights; switch 26, tail lights and marker lights; switch 28, stoplights; and switch 30, right turn lights. Following standard procedures, the switches are positioned on the front panel to be flipped up or down where a switch is in its conducting state when it is in its up position and is in its open or non-conduction state when in its down position. If desired, light emitting diodes can be located on the front panel next to each switch to visually indicate to a user if the switch is in its conducting or non-conducting state.

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