Fan blades and manufacture methods
US10487843B2 · kind B2 · utility
2Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/6033
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An airfoil member (100) comprising has a substrate (120) along at least a portion of an airfoil (102) of the airfoil member. A sheath (122) has a channel (144) receiving a portion (160) of the substrate. A scrim (200) is between the substrate and the sheath. A spacer (220) is between the sheath and the substrate and has a plurality of spaced-apart portions (232, 234) with gaps between the spaced-apart portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.