Polymer concrete paving machine
US5352063A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self-propelled paver that distributes, consolidates, places and finishes polymer concrete to rapidly resurface roadbeds. A mobile, wheeled chassis mounts an adjustable hopper that receives premixed polymer from a mixer truck that precedes the paver. A finishing assembly secured to the chassis has a distribution assembly for applying concrete transversely across the surface, and a trailing finishing screed that surfaces and densifies the concrete. An active, hydraulic suspension dynamically orients the chassis and the finishing assembly with the roadbed. Individual height adjusting cylinders can be extended or contracted by an automatic grade control that logically senses grade through an external string line. The distribution system comprises an open bottom exposing the surface to be paved, and an open top adapted to receive concrete from a trough extending from the hopper. A bidirectional auger is rotatably disposed within a distribution box for moving concrete upon the surface. The finishing screed comprises a rigid strike off that initially contacts uncompacted concrete laid by the distribution system. An intermediate pan extending between the strike off and a trailing bull fl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.