Self-righting roadway marking device

Details Self-righting roadway marking device Self-righting roadway marking device

1976-08-03

1978-09-26

Yasich, Daniel M.

Communications: electrical

Digital comparator systems

40608, 40612, 116 63P, E01F 901, G09F 722

Patent

active

041174550

ABSTRACT:
A self-righting tippable roadway marking device includes a base member with a substantially spherical lower ground-engaging surface. A blind bore is formed in the base member centrally thereof and is adapted to releasably retain a staff element fixedly therein. An elongated staff element has its lower portion mounted non-rotatably in the blind bore and has a plurality of wind vane elements secured fixedly thereto. The wind vane elements extend radially outwardly from the staff element and are spaced equidistantly thereabout. Thus, in response to wind or other forces, the marking device will exhibit a tipping and rotating movement on its spherical lower surface.

REFERENCES:
patent: 1249539 (1917-12-01), Spear
patent: 1370697 (1921-03-01), Mann
patent: 2002756 (1935-05-01), Segelhorst
patent: 2521496 (1950-09-01), Workun
patent: 2646638 (1953-07-01), Peterson
patent: 3318279 (1967-05-01), Padilla

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