Drill protection device, drill protection assembly and access member
US11530569B2 · kind B2 · utility
0Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2018 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Oct 11, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B5/11
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Drill protection device (12) for an access member (10), the drill protection device (12) comprising an enclosure (26) defining an interior volume (50) and comprising a first side wall (32); at least one rigid first plate member (40) arranged within the interior volume (50), the at least one first plate member (40) being flexibly connected to the first side wall (32) and angled with respect to the first side wall (32); and fibers (52) arranged within the interior volume (50). A drill protection assembly (68) and an access member (10) are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.