Straddling dowel
US6491486B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 18, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/124
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to an expansible fixing plug (10) having an expansion region. To achieve a high anchoring force, the invention proposes constructing the expansible fixing plug (10) in the expansion region with two circumferential wall portions (18) arranged lying opposite one another, each of which extends over about 180° and from the insides of which expansion ribs (20) project inwards, the inner edges (22) of which expansion ribs form a semicircular arc and by which an expansion channel (24) that is continuous in the lengthwise direction of the expansible fixing plug (10) is constricted to a lens shape. By screwing an expansion screw into the expansion channel (24), the expansible fixing plug (10) is expanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.