Apparatus for cutting recessed grooves into concrete and rock material
US5180209A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/307616
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Recessed grooves are cut into bore hole walls of concrete or rock materials for the purpose of interconnecting two components of such materials at an interface between these components. These recessed grooves are cut by material removing tools which can be pressed radially outwardly, while a drive shaft simultaneously rotates these tools. For this purpose, an axial movement of an adjustment body is converted into a tilting movement of pivotable shafts which carry the material removable tools, whereby the adjustment body is moved linearly by a hydraulic lifting device. The material removing tools extend radially away from the lower ends of the pivotable shaft. The common adjustment movement of all of the pivotable shafts takes place independently of the rotation of the driven shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.