Patent ID: 7665870
Filing Date: 2010-02-23
Classification: A41D,B60Q,G09F

Abstract:
1. A method, comprising: assembling a cab to a trailer; affixing at least one electroluminescent (“EL”) lighting device, for illuminating a sign to at least one of the cab and the trailer such that the at least one EL lighting device is oriented to a rear of the trailer; affixing at least one additional EL lighting device for illuminating a further sign to at least one of the cab and the trailer such that the at least one additional EL lighting device is oriented to a front of the cab, the at least one EL lighting device and at least one additional EL lighting device formed by encapsulating a phosphor portion of the EL lighting device with an encapsulation layer to resist moisture; powering the at least one EL lighting device to illuminate an area in front of the cab; powering the at least one additional EL lighting device to illuminate an area behind the trailer; plowing snow with the cab and trailer; and following the cab and trailer with a further truck in a predetermined truck formation, with the sign oriented toward the further truck while the further truck is in the predetermined truck formation with the cab and trailer.