Aerodynamic structural pipe for hang gliders
US4871132A · kind A · utility
4Cited by
7References
9Claims
0Family size
Inventor
Key dates
| Filing date | Dec 16, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Dec 16, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C31/028
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention provides an aerodynamically profiled structural pipe (1) comprising a supporting pipe (2) and a rear tapered part (3) of soft material. The tapered part (3) has on both sides beads (15) forced into and captively held by rearwardly open chambers (12) of the supporting pipe (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.