Planar or three-dimensional ceiling latticework consisting of bars and joint-fittings, in particular a walk-on ceiling lattice
US5483780A · kind A · utility
11Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/2484
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In order to render more economical ceiling latticeworks constituted by bars and joint-fittings, the pillars and joint-fittings 14 evince an identical cross-sectional contour with longitudinal flutings, for instance a contour in the shape of a cross. Thereby, the pillars can be substituted for the joint-fittings 14 in the pillars' connection zone. The chord bars 12 of the ceiling lattice are hollow, cross-sectionally rectangular sections and are connected by clamping locks each comprising two clamping jaws 19, engaging and being clamped in flutings 24 of the joint-fittings 14 or pillars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.