Offset screed system and quick connect mounting therefore
US5567075A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Jul 7, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A laser controlled automatic grade control system for finishing plastic concrete mounts the finishing tool behind the support towers to resist furrowing. The system functions with a variety of elongated, multi-section concrete finishing tools such as triangular truss screeds or the like, all of which can be quick connected or disconnected from the tower system. Skis that support the device facilitate sliding, winch-driven movement over and through plastic concrete. Spaced apart, vertically upwardly extending towers support the device along the length of the finishing tool. The towers are cylinder-adjustable in length. Cylinder extension and retraction are governed by a sensor-controlled system that is laser operated. The sensors respond to a preestablished laser beacon to control finishing tool elevation as the device traverses the pour in response to its winches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.