Device for fixing insulating strips
US6183182A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Mar 29, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D3/3603
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a fastening element (1) for fastening insulating sheets and if necessary sealing sheets to a solid base there are provided a screw (5) and a large-surface washer (6), wherein the screw (5) has a drilling point (7), a screw shank (9) provided at least partly with a threaded region (8) as well as a screw head (10). The washer has a central hole (21) for introducing the screw shank. A tubular extension (20) aligned axially parallel to the screw shank (9) to be inserted adjoins the central hole (21) in the washer (6). Sections or parts of this extension (20) engage by plastic deformation in the threaded region (8) of the screw shank (9) to achieve preassembled retention of the washer (6) and screw (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.