Roller tube for awning and method of forming
US5351736A · kind A · utility
16Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1993 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Oct 4, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/46
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A galvanized and coated roll formed tube has several slideway channels formed therein. Edges of the sheet material forming the tube are folded back and interlocked in a hook arrangement to form a seam. The seam is located radially inwardly from the inner circumferential surface of the tube, preferably on a wall of one of the channels. Strengthening ridges are also formed in the tube. The tube is attached to an awning and supported at each end by poles or outriggers. The awning is also attached to a wall so as to be rollable around the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.