Expansion anchor assembly
US4983082A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion anchor assembly to be secured in a borehole is made up of an expansion sleeve and an anchor rod. The expansion sleeve has a plurality of expansion sections arranged to be deflected radially outwardly by drawing an expansion cone on the front end of the anchor rod into the sleeve. Each expansion section has a circumferentially extending weakened section forming a bending location. The weakened section is located between a radially inner and a radially outer recess in the expansion section. Each of the recesses has a rectilinear base extending tangentially relative to the expansion sleeve axis with the bases located in a plane disposed normal relative to the expansion sleeve axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.