Method of making counterrotating aircraft propeller blades
US4971641A · kind A · utility
33Cited by
10References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1990 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Mar 1, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D27/026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft propeller blade is constructed by forming two shells of composite material laminates and bonding the two shells to a metallic spar with foam filler pieces interposed between the shells at desired locations. The blade is then balanced radially and chordwise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.