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US 4,357,595 AGranted
Flashing light warning system for vehicles
AssigneeFederal Signal Corporation
InventorEarl W. Gosswiller
Life of this patent
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AssigneeFederal Signal Corporation
InventorEarl W. Gosswiller
Estimating the term…
A flashing light system for mounting on the roof of a police car or other vehicle where special warning lights are desired. The system includes a plurality of lights preferably arranged side-by-side across the width of the vehicle roof, each of the lights having associated therewith a parabolic reflector or beam-shaping lens which rotates about a vertical axis approximately coaxial with the axis of the corresponding light source thereby creating a flashing effect. The several parabolic reflectors or beam-shaping lenses are driven conjointly from a common drive motor, and the plurality of rotatable reflectors or lenses may be arranged at predetermined angles relative to one another so as to vary the sequence of the light flashes and thus create an unlimited variety of different flashing effects. In accordance with a preferred embodiment, each light source is stationary while its associated reflector or lens rotates, the reflectors or lenses being oriented at different rotational positions relative to one another to achieve the foregoing desired variety of different flashing effects.
A flashing light warning system for mounting on the roof of a vehicle comprising, in combination, at least four individual light assemblies each including a light source and a beam-shaping lens, said lens portion of each of said light assemblies being rotatable about a generally vertical axis for producing generally horizontal light flashes in different radial directions, said light assemblies being mounted in a common housing in generally side-by-side relation spaced transversely across the width of a vehicle roof on which said housing is mounted, certain of said lenses being oriented in different rotational positions with respect to other lenses to produce a predetermined sequence of flashes from different ones of said light assemblies, each of said lenses being interconnected with one another to maintain the relative orientation between them during rotation thereof, and motor drive means for conjointly rotating said lenses.
Dependencies are inferred from the claim text.