Portable illuminated traffic light

Details Portable illuminated traffic light Portable illuminated traffic light

1979-06-04

1981-03-03

Yasich, Daniel M.

Signals and indicators

Street traffic

Portable

40549, 40612, 340114R, G01F 901, G01F 904

Patent

active

042534151

ABSTRACT:
Roadway traffic and/or warning signs are provided with the construction thereof being such so as to provide flexible and/or pliable structures which are simultaneously lightweight for easy handling, but are of substantial strength. The signs of the invention are, preferably, comprised of molded polyurethane foam of integral structure which will give upon impact without damage, and will revert to their previous position once the forces causing the impact are removed.

REFERENCES:
patent: 2558944 (1951-07-01), Emmerson
patent: 3016035 (1962-01-01), Asbury
patent: 3136083 (1964-06-01), Guth, Jr.
patent: 3380428 (1968-04-01), Abrams
patent: 3485201 (1969-12-01), Kelly
patent: 3593447 (1971-07-01), Winegarten
patent: 3792679 (1974-02-01), Duckett et al.
patent: 3838661 (1974-10-01), Medley, Jr.
patent: 3863372 (1975-02-01), Stilling
patent: 3913518 (1975-10-01), Kaplan
patent: 3972107 (1976-08-01), Deike
patent: 4032248 (1977-06-01), Parduhn
patent: 4061435 (1977-12-01), Schmanski et al.
patent: 4117455 (1978-09-01), Cervantes

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