Retractable roof top sign for automotive vehicles

Communications: electrical – Digital comparator systems

Patent

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Details

340 84, 340 87, 340135, 340137, 40592, 40601, 116 40, 362 66, 362 71, G08B 300, G08B 536

Patent

active

042596602

ABSTRACT:
A retractable roof top sign for automotive vehicles including a generally rectangular low profile frame for attachment to the roof of the vehicle and a sign structure transversely spanning the frame in pivotal attachment at a lower end between a pair of longitudinal side rails of the frame, a small gear motor being provided in driving connection to the sign in a manner so as to permit the sign to be selectively moved between a retracted position within the confines of the frame and a vertically erect position by operation of appropriate electric control switches mounted in the operator's compartment of the vehicle. For use in police cruisers or the like, an attention getting light flasher bar extends across the top width of the sign, and front an rear lights mounted within the confines of the frame are directed respectively on front and back messages displayed on the sign. A pair of oppositely directed longitudinally extending signs may be pivotally mounted along the respective side rails of the frame in a manner to cause their movement between retracted and elevated vertical positions in unison with the transverse sign.

REFERENCES:
patent: 2836914 (1958-06-01), Nelson et al.
patent: 3173616 (1965-03-01), Lipscomb
patent: 3465141 (1969-09-01), Schiffer
patent: 3579184 (1971-05-01), Forestal
patent: 3622980 (1971-11-01), Elledge
patent: 3761890 (1973-09-01), Fritts et al.
patent: 4081788 (1978-03-01), Gaspar

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