Anchor bolt with mechanical keys deployed by internal pressurization
US4511296A · kind A · utility
16Cited by
51References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Mar 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In order to provide an anchor site in a matrix of solid material which has an accessible face, a socket is formed in the material through the accessible face. A shaft such as an anchor bolt is inserted in the socket, leaving an accessible emergent outer end portion. Via the outer end, explosive force is introduced to or generated in a central cavity of the shaft, which explosive force dislodges and deploys radially essentially outwardly at least one key at at least one level within the socket. Various ways for producing the explosive force are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.