Illumination – Light source and modifier – Including translucent or transparent modifier
Reexamination Certificate
2001-05-08
2001-12-25
O'Shea, Sandra (Department: 2875)
Illumination
Light source and modifier
Including translucent or transparent modifier
C033S277000, C362S359000, C362S351000, C362S353000, C362S361000, C362S376000, C362S509000, C362S231000, C362S457000, C362S458000
Reexamination Certificate
active
06332696
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention generally relates to the field of traffic signaling devices and more particularly, is directed to a device for covering the lens of a traffic signal when the signal is not in service.
Due to the evolution of electric traffic signaling devices over the years and the need to maintain orderly and safe traffic flow, the driving public has become conditioned to pay particular attention to traffic lights. Drivers are aware that traffic lights have a predictable and repetitive operation. Even when the light malfunctions, drivers have a tendency to continue to wait at an intersection until the light returns to its normal operation.
Moreover, a traffic light that is out of service can be just as confusing to drivers as one which has malfunctioned. Even when all lamps within view of a motorist are out, the motorist can not conclude with a high degree of certainty that the traffic light is out of service without checking to be sure that all other lamps are out as well. Doing so, however, is usually not practical.
Accordingly, there exists a need in the art to provide a positive indication that a traffic signal is out of service so that motorist are not confused and can readily determine the operational status of the signal.
SUMMARY OF THE PRESENT INVENTION
Accordingly, it is an objective of the present invention to obviate the above-noted shortcomings and disadvantages of inoperative traffic signals.
It is an objective of the present invention to provide a lens cover for inoperative traffic signals which lessens the likelihood that a motorist will be confused about the operational status of the signal.
It is a further objective of the present invention to provide a lens cover for inoperative traffic signals which is easy and convenient to use.
It is a still further objective of the present invention to provide a lens cover for inoperative traffic signals which is economical to make and simple to use.
It is a further objective of the present invention to provide a lens cover for inoperative traffic signals which is more economical than prior art approaches.
It is a still further objective of the present invention to provide a lens cover for inoperative traffic signals which completely prevents any light from the signal being visible to a driver.
REFERENCES:
patent: 849409 (1907-04-01), Martin
patent: 2849795 (1958-02-01), Vissing
patent: 2889629 (1959-06-01), Darkenwald
patent: 5988833 (1999-11-01), Giese et al.
Banner & Witcoff , Ltd.
O'Shea Sandra
Ton Anabel M
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