Speed limit indicia for traffic signals

Details Speed limit indicia for traffic signals Speed limit indicia for traffic signals

2011-04-19

2011-04-19

Davis, Cassandra (Department: 3611)

Card, picture, or sign exhibiting

Illuminated sign

C040S557000, C040S612000, C340S928000

Reexamination Certificate

active

07926212

ABSTRACT:
A traffic signal device includes a plurality of illuminatable light assemblies such as red amber and green used to control traffic flow. A transparent element configured to fit upon the outer surface of the lens of a light assembly supports one or more opaque numerals corresponding to vehicle speed limits. The transparent member baring the speed limit numerals is placed upon the outer surface of the traffic signal lens to impose the speed limit numerals upon the light emitted by the light assembly when illuminated.

REFERENCES:
patent: 1917165 (1933-07-01), Thompson
patent: 1962838 (1934-06-01), Regester
patent: 2417443 (1947-03-01), Paul
patent: 2586039 (1952-02-01), Heggedal
patent: 3210728 (1965-10-01), Davis et. al.
patent: 3401596 (1968-09-01), Hirsch
patent: 3740716 (1973-06-01), Sproul, Sr.
patent: 4837569 (1989-06-01), Sproul, Sr.
patent: 4977695 (1990-12-01), Armbruster

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