Patent ID: 6766760
Filing Date: 2004-07-27
Classification: E01F

Abstract:
A safety marker device, comprising:(a) a base having an opening for stacking with another safety marker device; (b) a flexible means having an impulse response to indirect and direct perturbations caused by a moving vehicle or caused by being dropped from a vehicle, said flexible means is positioned over said base, wherein said base supports said flexible means; and (c) a cover to cover said flexible means, wherein said cover is made of a flexible material and allows said impulse response to said indirect and direct perturbations; wherein said base being heavier than the combined weight of said flexible means and said cover, wherein said flexible means maintains in an original position in absence of said indirect and direct perturbations, and flexes from said original position to a bent position in presence of any of said indirect and direct perturbations, wherein said bent position is characterized by having part of said flexible means bent up to a substantially horizontal position with respect to said base, and wherein said safety marker device has a low center of gravity mainly due to said heavier base, whereby said low center of gravity facilitates in restoring said original position and whereby said heavier base facilitates said flexing.