Expansion dowel
US5746557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1997 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Jan 30, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion dowel including an expansion sleeve one end portion (4) of which receives a load and an opposite portion of which has an expansion region divided into expansion tabs by a plurality of longitudinal slots (7) extending toward a leading end of the expansion sleeve (2), with the expansion tabs (6) being connected with the expansion sleeve (2) by a first ductile joint (5) and having an annular collar (8) interrupted by the longitudinal slots (7), and an expansion member (13) displaceable in an axial through-bore (3) of the expansion sleeve (2) from an initial position to an end position upon expansion of the expansion region of the expansion sleeve (2), with the expansion tabs (6) projecting beyond the annular collar (8) and integrally connected with a distance segment (10) of the expansion sleeve (2), which distance segment collapses radially inward upon expansion of the expansion tabs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.