Patent ID: 7854531

Claim:
A modular lightbar assembly having a longitudinal axis, said modular lightbar assembly comprising: two adjacent, longitudinally aligned base sections, each base section having at least one lower end wall defining an aperture, the said at least one lower end walls being in adjacent face-to-face relationship and said apertures generally aligned; a bridge seal engaged with said adjacent at least one lower end walls, said bridge seal defining a concave channel spanning said apertures and transverse to the longitudinal axis of said modular lightbar assembly; at least one light generator mounted to one of the base sections; and a dome complementary to each base section, each said dome comprising a peripheral wall having an upper end wall portion received in said channel, wherein each said dome and base interfit to form a module defining an interior space, the interior space of said modules communicating with each other through said apertures beneath said bridge seal.