Lead-in system for ceilings and walls including trapezoidally corrugated sheet metal framework
US6314692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Aug 3, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G15/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cast-in concrete (1), lead-in system (2) for ceilings and walls having a trapezoidally corrugated sheet metal formwork (7) and including a lead-in sleeve (3) for receiving one of a tubular conduit and a cable and having at least three outer, circumferentially spaced from each other, fixing points (4a, 4b, 4c) for securing the lead-in sleeve to the trapezoidally corrugated sheet metal formwork (7), and at least two stiff looking elements (5a, 5b) each having a connection element (12) for a formlocking connection with the fixing points (4a, 4b, 4c) of the lead-in sleeve and a mounting element (6) for securing the locking element (5a, 5b) to peak regions (8) of trapezoidal corrugations of the trapezoidally corrugated sheet metal framework.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.