Concrete extraction system
US6682049B2 · kind B2 · utility
7Cited by
14References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53991
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and Methods for extracting concrete blocks or other materials cut from a surface is disclosed. An extraction apparatus typically includes a leveraging device connected to a vacuum cup and vacuum pump. The vacuum cup is placed on the material to be removed. A vacuum is pulled on the vacuum cup. The leveraging device is maneuvered to lift the material. The vacuum can be removed when the material is moved to the desired location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.