Expansion bolt assembly
US4702656A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/0833
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion bolt assembly for use in boreholes with an annular undercut adjacent the base of the boreholes includes an axially elongated anchor bolt, a support sleeve laterally enclosing the anchor bolt with annular segments formed on the support sleeve, and an expansion sleeve to be inserted between the anchor bolt and the support sleeve. The annular segments are displaced radially outwardly by the expansion sleeve into the undercut in the borehole. The annular segments extend radially outwardly from the outside surface of the support sleeve. During the expansion procedure the outer surface of the support sleeve is pressed against the surface of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.