Pavement marker and reflector assembly
US4070095A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Feb 2, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/553
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pavement marker including a body having a base for engagement with the surface of a roadway, and a reflector assembly mounted on the body for reflecting light from vehicles on the roadway when the fore-and-aft axis of the body is disposed in parallel relationship with the direction of vehicular travel on the roadway. The reflector assembly includes a pair of plate-like members of light transmitting material. The plate-like members each has an outer surface and an inner surface. The plate-like members are secured together at their peripheries with the inner surfaces thereof disposed in opposed relationship. Retrodirective reflector elements are formed on one inner surface, and the apices of the reflector elements are spaced from the other inner surface. A plurality of support members extend between the inner surfaces to maintain the apices of the reflector elements out of contact with the other inner surface and to provide impact strength to the assembly. The support members are spaced from each other so that the reflector elements have no contact with any of the support members. The support members, in addition to providing structural strength to the reflector assembly, may provi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.