Triangular retractable safety marker

Details Triangular retractable safety marker Triangular retractable safety marker

2007-08-21

2007-08-21

Addie, Raymond (Department: 3671)

Road structure, process, or apparatus

Traffic director

C116S06300T, C116S06300T

Reexamination Certificate

active

11008620

ABSTRACT:
A triangular retractable safety marker provides motorists and motorcyclists with advance warning of disabled vehicles and/or work zone areas. The device has been designed to withstand reasonable winds through the use of two base supports, a lower portion and two sets of lower, middle and upper risers. The risers allow for the device to easily expand to height consistent with traffic engineering design standards for triangles when in operation and then compact when it is in storage. The two base supports in are designed not only to provide the necessary structural stability but to also open and close about the retractable risers thus providing for additional compactness. The upper part of the lower portion along with the two sets of lower, middle and upper risers have reflective decals affixed to them to correspond with standard triangle design.

REFERENCES:
patent: 3625177 (1971-12-01), Miller
patent: 3798814 (1974-03-01), Harmon
patent: 4489306 (1984-12-01), Scolari
patent: 4825191 (1989-04-01), Ching-Hwei
patent: 5613798 (1997-03-01), Braverman
patent: 5775253 (1998-07-01), Quan et al.
patent: 6508195 (2003-01-01), Tipaldo
patent: 6535113 (2003-03-01), Gravolin
patent: 2002/0062780 (2002-05-01), Chen

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