Expansion bolt
US4400122A · kind A · utility
4Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jan 19, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to an expansion bolt of a type having an expansible shell arranged on an elongated stud, with a tapered plug being provided to expand the shell in use. In order to render the bolt more versatile, a spacer is provided between the plug and the expansible shell, the spacer being in the form of finger elements which engage the inner surface of the shell to expand it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.