US 12,264,446 B2
Road obstacle warning system
Ganesh P. D. Kannan, Bangalore (IN); and Santhosh Kumar Rajendran, Bangalore (IN)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/606,480
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Apr. 28, 2020, PCT No. PCT/IB2020/054006
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/222124, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 201941017125 (IN), filed on Apr. 30, 2019.
Prior Publication US 2022/0195679 A1, Jun. 23, 2022
Int. Cl. E01F 9/529 (2016.01); E01F 9/582 (2016.01)
CPC E01F 9/529 (2016.02) [E01F 9/582 (2016.02)] 15 Claims
OG exemplary drawing
 
1. A road obstacle warning system (A), the system comprising:
a plurality of road units (1) disposed one adjacent to another on a road surface and configured to interconnect with each other, wherein each road unit (1) comprises:
a top body (2) comprising at least two sections, a first section (2a) and a second section (2b); wherein the first section (2a) and the second section (2b) each having a front end, a back end, a plurality of side faces, a top face and a bottom face;
at least two shanks (3) to overhang from the bottom face of the second section (2b) of the top body (2); and
a power supply means for powering the road unit (1) through a main supply line (7),
wherein
the plurality of side faces of the first section (2a) extends downwards and outwards at an angle from the top face to the bottom face of the first section (2a),
the second section (2b) of the top body (2) is configured to affix within the first section (2a),
each of the shanks (3) provided with a conduit extending throughout the center along the longitudinal axis,
each of the shanks (3) connected at lateral ends of each of the top body (2) that overhang from the bottom face of the second section (2b), and
the main supply line (7) is provided in one or more grooves (10) along the longitudinal axis of the bottom face of the second section (2b).