Bicycle frames and aluminum alloy tubing therefor and methods for their production
US5507888A · kind A · utility
11Cited by
17References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1993 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Nov 15, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/057
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for making an aluminum alloy bicycle frame and for making tubes for such frames including use of an aluminum alloy containing about 0.5 to 1.3% magnesium, about 0.4 to 1.2% silicon, and about 0.6 to 1.2% copper and preferred practices for making extruded and drawn tubing of the alloy and making bicycle frames from the tubing. The preferred practices include extrusion temperature control and other aspects of extrusion and drawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.