Device for cutting a receptacle in pavement to receive plowable reflectors
US4463989A · kind A · utility
Inventor
Key dates
| Filing date | Dec 7, 1981 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Dec 7, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/0946
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for cutting a receptacle in pavement to receive a reflector designed to reflect automobile lights, which reflector is contained in a housing so that it is protected from a snowplow mold board during normal plowing operations. Such reflectors are becoming standard in separating traffic lanes and are embedded in the pavement in epoxy. The device simultaneously cuts a receptacle of a shape such that the reflector and its protective cast iron housing may be readily inserted in the pavement. The device enables the receptacle to be cut at right angles to a tangent to the curved portion of the crown of the road, permits rapid exact positioning of the receptacle location and enables the receptacle to be formed in approximately five seconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.