Composite bar
US4640078A · kind A · utility
40Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Feb 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S49/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a composite bar for example for window or door frames or shutters comprising a plastic hollow profile bar with an inner and outer surface. Adjacent said surfaces substantially parallel thereto a metal flange is inserted into the interior of the plastic hollow profile bar. To increase the resistance to bending of this frame with respect to forces perpendicular to the window pane or door leaf without substantially reducing the thermal insulation the two metal flanges are connected together in shear-transmitting manner without metallic contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.