Asphalt paver with compaction compensating system
US5599134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Sep 15, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved asphalt paver with a compaction compensating system includes a nominal reference, such as an elongate averaging ski, for determining the general profile of the underlying terrain on which a mat of asphalt material is being placed by the paver. The improved system also includes a compensating ski for determining localized irregularities of the subgrade and a control system for responsively altering the thickness of the mat being placed by the paver to compensate for differential compaction of the asphalt material such that a generally planar asphalt paving surface is obtained after compaction thereof. Modified embodiments of the improved compaction compensating system include a stringline for the reference and two non-contacting sensors for communicating the general profile and localized irregularity determinations to the control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.